Standardised reference shot at diamond 50 (long rail, mid-table). Used to calibrate Korean 5-and-half system to a specific table's cushion behavior.
System Shot 50 — Setup
Cue ball at diamond 25 (your side, mid-rail). Aim at diamond 50 reference.
Stroke and english
Standard medium pace, neutral english. Half-ball reference.
When to use it
New table, new conditions, before serious play. Calibration test.
Common mistakes
Inconsistent stroke = invalid calibration. Use exactly same pace each rep.
Success rate & practice
Used to derive table-specific Diamond System adjustments.
Pro players who use it
Korean PBA training rotation. Standard pre-match warm-up for system-shot players.
Practise this position
Open it directly in 3ball — adjust ball positions, stroke, and english to match your real-table setup.
Open in 3ball →Related positions: