Worst would be about 6 years back. I saw a nice buck pusing a doe in the distance. I spent about 1.5 to 2 hours stalking these two. I finally set up behind a bush cross wind of where they were headed. Every thing was going as planed. As this buck got closer I realized it was one of the nicest ive ever had a chance to arrow. As the doe passes, I draw, and in mid draw the cable on my quick tun 2000 sliped. The arrow wouldnt raise. All I could do was watch as they walked by. I guess I had snagged it as I was crawling, or something. I soon switched to a Muzzy and fixed the problem.