How do pros decide between standard and 'X' golf balls?
Know the differences: Pro V1 vs. Pro V1x - PGA TOUR
Rory McIlroy Signed Autographed Titleist Golf Ball with Display Holder – Sports-Autographs.com
The Golf Guide - Who remembers these bad boys X out golf balls, Can anyone better these?,,,,What was actually wrong with X out balls anyone know? Titleist UK & Ireland Golf Monthly