NSA Thunder Advance balls are what I would choose for a hr derby over any other ball.
Any other ball Really? Not a Launch 650 or ZN Stadium, or any other .52 575?
Thunder advance is what I was thinking. Hope I can find them. I'm passing thru cincy and Lexington for work the next 2 days.. Anybody local to those areas know where to grab them?
If you're hitting anything other than NSA Thunder Advances, you're doing it wrong.
Possibly of the best quotes I've read on here...no doubt thunder advanceThunder Advance, no question about it.