Manufacturer List -> Hammer -> Drilling Set 3 -> Layout 4
4" Pin with 90 Mass Bias
Ball Motion: Medium length with a smooth and continuous arc
Best Condition: Medium oil patterns, dry backens, slower ball speeds, and higher rev rate players
Flare Potential: Medium High
Pin Placement: 4" from the bowler's PAP
Mass Bias Placement: On the Grip Center Line, below thumb hole
Balance Hole: If needed, place balance hole 4" from center of span on a line through the center of gravity
