Learn the movement.
A naturally rolling cue ball often leaves at roughly thirty degrees to its incoming direction over the medium-cut range, approximately quarter-ball through three-quarter-ball hits. The roll state is part of the rule, not a footnote.
The cue ball initially departs along the tangent and then bends toward its rolling path. At higher speed that initial tangent travel is more noticeable. Nearly full hits, very thin cuts, draw, and stun need their own treatment.
One useful set.
- Setup & action
- Compare medium-cut presets, then examine a nearly full or very thin hit separately.
- What to watch
- Check the roll state and cut range before applying the reference.
- Practice format
- 10 attempts is a starting suggestion. Record the pattern, not just the best one.
A common complication.
Applying a thirty-degree line to every cut or to a cue ball still sliding.
Change one thingCheck natural roll and the cut range before using the approximation.
What changes the result?
Your setup, the equipment, and the intended outcome affect the comparison. Use a repeatable starting point and a modest target; bring persistent technique questions to a coach.
A note to yourself.
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