I have, one recently. Shot it, pulled it, checked it, and when I went to draw it again I noticed a different sound, looked it over at full draw, didn't see anything wrong and released. Part of it went into the woods, parts on the ground, the string sliced my hand but no damage to the bow except the site took a hit and my doniker d2 has since fallen apart. I thought I had did some serious injury to my hand. It began to swell instantly but I put ice on it right away for about an hour and it was better, though cut, by evening.

I won't release another one if thepitch changes like that one did, or any changein sound.