Progression should change the question you are testing, not award a level because an arbitrary percentage was reached. The sequence below is an original planning template, not a validated coaching scale.
Stage 1: explain the position
Choose a saved layout. Identify the cue ball, both object balls and a proposed cushion sequence. Predict where the first object ball goes. If the route cannot be described, study that uncertainty before counting successful attempts. A diagram-reading task and a stroke-execution task are different.
Stage 2: repeat a baseline
Decide the number of attempts before starting and keep every attempt in the record, including miscues and resets. Use the same ball positions and intended settings. Record the first divergence from the plan, not just make/miss. Repeated simulator inputs test the model’s repeatability; they do not demonstrate a human player’s consistency.
Stage 3: change one feature
Move one object ball by a recorded distance while keeping the others fixed. State a new prediction before shooting. Then restore the original position. Compare whether the earlier explanation still works, rather than moving balls until an easy success appears. There is no universal pass mark that proves mastery.
Stage 4: recall later
In another session, mix the original layout with the variation without looking at the old solution first. Keep these attempts separate from immediate repeats. If the route is read correctly but physical contact varies, ask for technique feedback; if the chosen route changes, revisit the plan. Use the next practice session to answer that specific question, with no promised deadline or average gain.
Continue: Plan a Three-Cushion Practice Session Around One Question →