Answers to Frequently Asked Questions (FAQs)
About Various Billiards and Pool Topics

mostly from the AZBilliards online discussion forum
and the Billiards Digest online CCB discussion forum

maintained for the book: The Illustrated Principles of Pool and Billiards,
the monthly Billiards Digest "Illustrated Principles" instructional articles, and the instructional video series:
Video Encyclopedia of Pool Shots (VEPS), Video Encyclopedia of Pool Practice (VEPP),
How to Aim Pool Shots (HAPS), and the Billiard University (BU)

Home

Note - A mobile-friendly app for this page is available at GoPlayPool.com under the Dr. Dave section of the drills and instruction area

  • 30-degree and 90-degree rules
    • 30-degree rule
    • 90-degree rule
    • ball condition effects
    • carom and kiss shot aiming
    • Dr. Dave's peace-sign technique
    • english (sidespin) effects
    • half-ball hit "gems"
    • largest deflected angle
    • poetry
    • resources
    • speed effects
    • when the 30-degree rule applies
    • where the CB goes for different cases
  • advice
    • alcohol effects
    • doing what feels "natural"
    • improving your game
    • pool tips, "secrets," and "gems"
    • selecting an instructor
    • what it takes to play like a pro
  • aiming
    • aiming systems
      • benefits of various aiming systems
    • aim compensation for squirt, swerve, and throw
      • squirt, swerve, and throw effects
    • bank and kick shot aiming systems
    • bisect-pivot-and-shift aiming system
    • bottom-of-the-ball aiming
    • carom and kiss shot aiming
    • Center-to-Edge (CTE) aiming system
      • Stan Shuffett's Pro-One version
      • evaluation and analysis
      • insightful quotes from others
    • combination shot aiming
    • contact-point-to-contact-point or parallel-lines system
    • Dave's Aiming Method (DAM) aiming system
      • useful advice
    • double-the-distance or double-the-overlap aiming method
    • fractional-ball aiming
    • frozen-ball shots
    • ghost-ball aiming
    • Hal Houle's 3-angle system
    • Hit-A-Million-Balls (HAMB) aiming system
    • limited lines of aim
    • 90/90 pivot-based aiming system
      • pivot-based system issues
    • Perfect Aim
    • Pro One
    • shaft-edge aiming system
    • sighting
    • Supplemental Aiming Method (SAM)
    • using lights and ball reflections
  • balls
    • colors
    • compression effects
    • contact time
    • cue ball types
    • elasticity
    • material and manufacturing
    • Silicone spray effects
    • smoothness and roundness
    • surface treatments
    • types for different games
    • weight, size, and wear effects
  • bank and kick shots
    • advantages of fast speed
    • bank shot drills
    • contact-point mirror system for aiming shallow-angle, rolling kick shots
    • Corner 5 System for aiming tww-, three- and four-rail kicks off a long rail
    • cut-induced-spin effects
    • diamond systems for aiming kick shots
    • double kiss detection and avoidance with bank shots
    • effects and factors to consider
    • equal-distance mirror system for aiming bank and kick shots
    • fast-speed-bank aiming system
    • kick shot drills
    • magic spot three-rail mirror-image kicking system
    • mirror system for aiming bank and kick shots
    • Plus System for aiming two-rail kicks off a short rail
    • shallow-angle contact-point-mirror-image kick-shot aiming system
    • Sid System for aiming steep two-rail kicks off a short rail
    • spin-transfer bank shots
    • spot-on-the-wall kick shot aiming system
    • through-diamond rolling-cue-ball 2-to-1 one-rail kick and bank shot aiming system
    • two-rail bank shot aiming system
    • two-rail parallel-line kick shot aiming system
    • two-times-across and three-times-across bank shots
    • two-times-across Z-kick aiming system
  • books
    • physics of pool
    • mental side of the game
    • recommended books
    • reviews of Dr. Dave's book
  • break
    • ball squat and hop
    • break drills
    • 8-ball break
    • follow-through
    • making the 8-ball
    • measuring your own break speed
    • 9-ball break
    • pattern racking strategy
    • sidespin
    • statistics
    • technique and equipment advice
    • 10-ball break
    • theoretical simulation
  • bridge
    • closed bridge variations
    • open vs. closed
    • length
    • technique advice
  • carom shots
  • chalk
    • comparison of different brands
  • cue
    • balance point
    • cleaning
    • cue tip replacement
    • dent removal
    • elevation effects
    • "feel," "hit," "feedback," and "playability"
    • ferrule
    • jump cue
    • laminated shafts
    • low-squirt (low-deflection or LD) shafts
      • advantages
      • disadvantages
      • getting more spin
      • squirt (cue ball deflection) comparison among various cues
    • natural pivot length
    • "squirt," "deflection," "stiffness"
    • types and tapers
    • vibration
    • weight
  • cue ball control
  • cue tip
    • chalk effects
    • contact time
    • deformation and mushrooming
    • efficiency
    • force
    • hardness and english
      • hardness comparison chart
    • how to replace the tip
    • recommended brands
    • size and shape
  • cut shot
    • back cut
    • ball-hit fraction vs. cut angle
    • estimating cut angle
    • "impossible" cut shots
    • margin for error
    • overcutting
    • rail cut shots
    • speeds and travel distances for the CB and OB
    • straight-in shots
    • undercutting
  • deflection (see squirt)
  • draw
    • advice and drills
    • bridge length effects
    • cloth and cue ball effects
    • cue elevation effects
    • physics-based advice
    • power draw
    • quick draw
    • trisect aiming system
  • drills and games
    • American Rotation
    • Billiard University (BU) playing-ability exams
    • Bonus Ball
    • bank shot drills
    • break drills
    • carom shot drills
    • Colin's potting drill
    • custom drills
    • drill resources
    • 8-ball bowling and 10-ball bowlliards
    • Equal Offense
    • Fargo rating drill
    • Hopkins Q Skills
    • jump shot drills
    • kick shot drills
    • line-of-balls drill
    • MOFUDAT (center-ball stroke drill)
    • "playing the ghost" rating drills
    • position control drills
    • progressive practice
    • safety drills
    • Six Pocket
    • target practice drills
    • 3-ball drill
    • wagon wheel drills
    • why do drills
  • english (sidespin)
    • aim compensation for squirt, swerve, and throw
      • squirt, swerve, and throw effects
    • back-hand english (BHE) and front-hand english (FHE)
    • inside english
    • maximum sidespin
    • outside english
    • percentage english
    • rail cut shots
    • spin axis "flip" demonstration
    • "spin," "slide," and "roll"
    • spin transfer
    • terminology and uses
    • "tips of" and percentage english
    • when to learn
  • eyes and vision
    • depth perception
    • dominant eye
    • eye pattern "best practices"
    • finding the center of the cue ball
    • quiet eyes
    • sighting
    • vision center
    • which ball to look at last
  • facts, history, movies
    • facts
    • history
    • movies
  • follow
    • accuracy
    • ball hop
    • drag follow
    • effects of tip offset, speed, distance, cut angle
    • force follow
    • natural roll, maximum offset, and overspin
    • rail dribble
  • fouls
    • double hits
    • first contact legal hit
    • frozen cue ball shot
    • kiss-back shot
    • miscue
    • push shot
    • "scoop" jump shot
  • frozen balls
    • aiming systems
    • fouls
    • position control
    • throw
  • fundamentals
    • aiming
    • bridge
    • grip
    • pre-shot routine
    • stance
    • stroke
    • vision
  • games
  • grip
    • effects of light vs. tight grip
    • technique advice
  • jump shot
    • ball hop
    • highly elevated cue jump shots
    • illegal "scoop" shot
    • object ball jump shot
    • over cutting
    • rail jump shot
    • technique advice and drills
  • kick shots (see bank and kick shots)
  • lag shot
  • masse shot
    • after-collision masse shots
    • aiming
    • cue and tip
    • elevation and speed effects
  • miscue (see miscue limit and miscue foul)
  • mental aspects
    • changing bad habits
    • "choking" - how to help prevent
    • "dead stroke," and being in the zone
    • knowledge can be useful, but you still need skill
    • learning mental control
    • learning vs. intuition
    • physics "understanding" sometimes provides useful insight
    • technical knowledge is not enough
  • pattern play (see position control and strategy)
  • physics of pool and billiards
    • Coriolis
    • physical properties
    • resources
    • simulator
  • player ratings
    • Accu-Stats TPA
    • A-D rating system
    • APA handicapping system
    • Arizona 1-10 rating system
    • Billiard University (BU) playing-ability rating system
    • Fargo rating and handicapping system
    • 15-ball-rotation rating drill
    • Hopkins Q Skill rating system
    • National Pool League (NPL) rating system
    • Playing Ability Test (PAT)
    • "playing the ghost" rating drills
    • Pool Quotient (PQ) progressive-drill ability test
    • table difficulty factor for adjusting rating scores
  • pocket
    • corner pocket rattle and how to avoid it
    • "helping" english
    • pocket "size" and "center"
    • pocket and table difficulty factor
    • point compression
    • "tight" pockets
  • position control (cue ball control)
    • 30-degree and 90-degree rules
    • 45-degree rule for center-table position routes
    • drills for practicing cue ball control and position play
    • leaving an angle on a shot and coming into the line of a shot
    • nearly straight-in shots
    • rail cut-shot 60-degree rule
    • scratch avoidance
    • speed effects
    • useful reference lines
    • where the CB goes for different types of shots
  • pre-shot routine
    • definition
    • recommended best practices
  • rail cut shots
  • ratings (see player ratings)
  • rules
  • safeties
    • 30-degree rule examples
    • "big ball" effect
    • general advice
    • safety drills
  • sidespin (see english)
  • speed control
    • ball speeds and travel distances
    • cue ball path speed effects
    • drills and advice
    • optimal tip height for speed control
    • rail cushion speed change
    • typical speeds for a range of shots
  • spin transfer
  • squirt (cue ball deflection)
    • aim compensation
    • bridge length effects
    • cue elevation effects
    • cue natural pivot length
    • draw/follow effects
    • effects summary
    • endmass and stiffness
    • low-squirt (low-deflection or LD) shafts
    • miscue limit
    • published data
    • robot test results
    • speed effects
    • squerve
    • squirt, swerve, and throw confusion
    • straight-in shot with unintentional english
    • tip hardness effects
    • tip contact height effects
    • tip size and shape effects
    • what causes squirt?
  • stance
    • general advice
    • low stance
    • snooker stance
  • straight-in shots
  • strategy
    • bar box vs. 9-foot table
    • 8-ball
    • 9-ball
    • general
    • one-pocket
    • racking strategy
  • stroke
    • acceleration
    • best practices
    • cue elevation
    • chin height
    • elbow drop
      • advantages
      • disadvantages
    • follow-through
    • forearm perpendicular to cue
    • pendulum vs. piston stroke
    • pre-shot routine
    • set-pause-finish (SPF)
      • what is a pause?
      • why pause?
    • shooting over a ball
    • slip stroke
    • staying down on the shot
    • swoop
    • technique advice
    • "type" or "quality" of stroke
  • stun
    • definitions
    • 90 degree rule
  • swerve
    • contributing factors
    • OB "swerve" and "turn"
    • reducing swerve
    • squerve
  • table
    • cloth effects
    • cloth types
    • cushion nose height
    • drawing lines on the cloth
    • equipment specifications
    • how to clean and maintain
    • humidity effects
    • lighting
    • pocket sizes
    • "speed" of the cloth
    • standard pool table dimensions and room sizes
    • table difficulty factor (TDF)
    • terminology
  • throw
    • answers to questions about CIT, SIT, and OE
    • "cling," "skid," and "kick"
    • draw and follow effects
    • effects summary
    • examples
    • frozen balls
    • "hold" or "kill" shot to limit cue ball drift
    • maximum throw
    • outside english to prevent throw and cling
    • spin transfer
    • stop shot with sidespin
  • training aids
    • aiming aids
    • books
    • instructional diagrams
    • permission to use Dr. Dave's resources
    • spotted ball vs. striped ball
    • videos
  • trick and proposition shots
    • coin proposition shots
    • famous trick shots
    • proposition shots
    • shots from pool movies
  • videos
    • Austrian high-speed footage
    • Dr. Dave's video production methods
    • Illustrated Principles of Pool and Billiards
    • Jacksonville Project and other high-speed video studies
    • movies with billiards themes
    • reviews of Dr. Dave's DVDs
    • Video Encyclopedia of Pool Shots (VEPS)
    • videos online