Originally Posted by seekay
I've got a friend who was a (male) cheerleader in college, and still has crazy upper body strength from it. An awkward series of events on the tennis court suddenly left him with two badly sprained ankles and fair bit of anger. He smacked his Diablo hard into the court and severely cracked it in two places.
I took his ruined racquet and (in the name of science) tested it against my concrete driveway to see how much it took to break all the way through (a lot) and what was inside (foam).
And here I thought it was because you're floating the bridge and hoop of racquets you're stringing instead of letting them rest on the tower supports before you clamp down at 12 and 6.