I believe its a 50x4.5x60
puts pin below and between my fingers
night and day difference from OBB to taking the surface to 2000 and then adding factory finish polish.
super clean through the heads and great continuous motion to the pins.
awesome 1 -2 punch on the medium sport pattern.
pin down disruption and then when the heads started to go, pin up absolute curve.
Also a great ball, little longer, stronger, but stronger arcing motion
Both pieces have symmetric cores which fits my game better.