#### The Pool Gems Tips Tricks and Secrets

### Cue Ball Control

1.The 90 degree rule predicts the CB heads down the tangent line for stun shots.

2.The 30 degree rule predicts a rolling CB heads in the naturalangle direction.

3.The Dr. Dave peace sign can be very useful in applying and making adjustments to the 30degree rule.

4.The trisect system predicts the angle the CB direction changes for a goodaction draw shot is 3times the cut angle.

5For a fairly full hit, with a ballhitfraction greater than 3/4, the CB will deflect about 3times the cut angle (see where the CB goes for different cases).

6For a fairly thin hit, with a ballhitfraction less than 1/4, the CB will deflect about 7075% (about 3/4) of the angle between the aiming line and the tangent line (see where the CB goes for different cases).

7.With all shots, more speed shifts the cueball farther down the tangent line before curving to the final direction (see CB path speed effects).