Cue-ball control · 3 min read

Troubleshoot Pool Speed Errors: Long, Short and Wrong Route

A cue ball can finish too long or short on the correct route, or it can take the wrong route before distance is meaningful. Treating all three as a speed problem creates bad corrections. This worksheet identifies the first failed checkpoint across a straight roll, an object-ball transfer and a one-rail position route.

Cue-ball route diagram with short, target and long distance bands plus a separate wrong-route diagnosis card
Original Ariakon L–S–R diagnostic. Long and short are distance misses on the intended lane; wrong route fails an earlier direction or cushion checkpoint.

Define the three error labels

Call a target band at least one diamond long before every attempt. Use S, H, L or R in the log: short, hit, long or wrong route. A mishit gets M and remains in the denominator.

If the route is wrong, stop at that checkpoint. Do not estimate where the cue ball might have finished on the intended line.

L–S–R decision rule
LabelObservable evidenceDo not conclude
LongCorrect lane; cue-ball center passes the target bandThat the stroke was mechanically bad
ShortCorrect lane; center stops before the bandThat more sidespin is needed
Wrong routeWrong first line, collision or cushion entryThat distance is ready to score

Station A: straight roll for pure distance

Place the cue ball on the head spot and mark a one-ball-wide center corridor toward the foot rail using visual diamonds or removable guides outside the path. Call a one-diamond-long finish band before each shot. Use a rolling vertical-axis hit and complete eight attempts.

Score one point for staying in the corridor and one for the called band; maximum sixteen. A short or long ball inside the corridor is useful speed evidence. A ball outside the corridor is a route error and sends the next practice block to center contact and delivery.

Station B: transfer speed through an object ball

Place an object ball one diamond from a corner on a straight line and the cue ball two diamonds away. Call a broad cue-ball finish band beyond the collision-center region along the forward line. Shoot eight rolling follow shots with the same pocket and vertical-axis contact.

Score one for the pocket and one for the finish band only when the pocket and intended route were also completed. Mark the first error: object-ball line, cue-ball route or distance. This prevents a miss at the pocket from being recorded as a speed-control result.

Station C: add one natural cushion route

Set a modest cut into a corner so the cue ball naturally crosses to the opposite long rail and returns toward table center. Mark a half-diamond first-cushion window and a one-diamond landing band. Use no intentional sidespin for eight attempts.

Score one for the first-cushion window after a legal target-ball shot and one for the landing band only after that correct window; maximum sixteen. If the first cushion varies, the route is wrong even if the cue ball happens to stop in the band. Once six of eight entries reach the window, short and long finishes become actionable speed evidence.

Choose the next block from the first failure

A hypothetical set scores 15 of 16 at Station A, 13 at Station B and 7 at Station C. Five Station C attempts miss the cushion window on the same side. The evidence does not support a speed change; the next block keeps delivery size and repairs cut contact.

Retest the full three-station set only after the selected block improves. Conditions may change across tables, so keep the date and table with the score rather than treating one delivery label as universal.

Twenty-four-shot diagnosis
PatternNext eight shots
Six or more short with stable routeSame setup; one small delivery increase
Six or more long with stable routeSame setup; one small delivery decrease
Fewer than six correct routesKeep speed; repair line or contact
Straight station good, collision station poorPractice pocket plus finish separately
Only rail station poorStabilize cut and first-cushion entry