This is rather weird but all the 4, 5, 6, 7, 8 piece balls ...I can't tell the difference. I play prov 1 or prov 1x...doesn't matter. Only reason I play them is they were the first ball like that after the Tittie 384 tour was all done. I now have at least a backpack full of them practically new that my parents find in their back yard....so the only reason I play them is because I never have to buy a ball.
I even test different balls at work on the gc2 and nothing. Last night we had a Taylormade TP5 and I hit it alongside the Prov1. Same everything.
I have so many I don't know what to do with them all