Your cue can be used to help you aim (see NV 3.2 and NV D.9).
Make sure you are sighting shots consistently and purposefully.
Be leery and suspicious of exaggerated claims concerning some cut-shot aiming systems. Having said this, these systems do offer benefits to some people.
With good technique, HAMB (“Hit a Million Balls”) is the best “system” for aiming success.
Cue Ball Control
The 90 degree rule predicts the CB heads down the tangent line for stun shots.
The 30 degree rule predicts a rolling CB heads in the natural-angle direction.
The Dr. Dave peace sign can be very useful in applying and making adjustments to the 30-degree rule.
The trisect system predicts the angle the CB direction changes for a good-action draw shot is 3-times the cut angle.
For a fairly full hit, with a ball-hit-fraction greater than 3/4, the CB will deflect about 3-times the cut angle (see where the CB goes for different cases).
For a fairly thin hit, with a ball-hit-fraction less than 1/4, the CB will deflect about 70-75% (about 3/4) of the angle between the aiming line and the tangent line (see where the CB goes for different cases).
With all shots, more speed shifts the cue-ball farther down the tangent line before curving to the final direction (see CB path speed effects).
With a full-hit rolling CB shot, the CB travels about 1/7 the distance of the OB after impact (see ball travel distances).
With a rolling-CB half-ball hit, the CB and OB separate at close to same speed and same angle (see speed control article).
With a 45-degree-anlge stun shot, the CB and OB separate at the same angle and distance (see speed control article).
Draw Shot
Make sure your tip is well chalked, keep your grip relaxed, keep your cue as level as possible, accelerate smoothly into the ball (see draw shot technique advice).
For a stun-back shot, with a small and controlled amount of draw, a firmer hit closer to center offers better CB distance control (see physics-based draw shot advice).
Don’t push the miscue limit so much with long power draw shots.
The trisect system can be used to predict final CB direction with a good-action draw shot.
Draw is a lot easier on slicker cloth (or with a CB treated with Silicon spray) and with a lighter CB.
English (sidespin)
The miscue limit is half of the cue ball’s radius from the center, which is the width of the stripe on a striped ball (see “tips” of english articles).
Coming off a cushion can increase your margin for error when targeting a position close to a rail.
The 45 degree rule, that predicts a ball rolling into an end cushion at close to a 45 degree angle heads close to the center of the table, if very useful for position play.
Practice positioning the CB to the center of the table. This comes in handy in many game situations.
Safety Play
Always play safe when it increases your chances of winning a game.
Use two-way shots where possible when faced with a difficult shot (e.g., a bank).
If you use a break cue with a natural pivot length well matched to your bridge length, stroking errors will not affect your accuracy (see pivot-length article).