I have balls in my bag that I've played 2-4 rounds with. But if I'm playing in a tournament, I change when I scuff it. Whether it's from a wedge or cart path. Golf balls are engineered to be aerodynamic. When you scuff a ball, it adds wind resistance to that particular side and can cause some weird spin. Not like a ball hit by a mower, but you might notice it.
4/29/11 at 10:52am