I was out practicing last night and something in the back of the lanes tooks a huge chunk out of my QZ1. It wouldn't be so bad if it wasn't in my track area but I'm replacing it to be on the safe side. Got a choice between the two balls and read alot of good things about them both for shorter/light oil. Either one would work since I want it to be smoother off the dry than the QZ1. Has anyone thown both balls side by side to give a good comparison between them?