I broke strings just last week against a 4.5 power hitter at my club and I noticed a crack on my MSpeed. I pound the ball pretty hard, especially on the serve, but I thought it odd that the stick cracked on me. I've put many hours on the frame this fall, but I've never really had any problems with a racquet cracking or breaking. It was strung with Klip Legend 17 @ 54, so no problems there. The crack itself is a hairline crack splitting from the grommet where the throat connects to the head. It's nothing really major, and the stick still plays great. I just wanted to post here as a warning and to get a little feedback. Fischers have always been made well in my opinion, I had a Pro #1 that I hit with years ago with no problem. I'd just like to figure out what put the stress on the frame to cause the crack.