I have Winners Choice on my Trykon XL, and they've stretched big-time and the peep rotates, even with a tube on it. It could have just been a bad set, but I'll likely not buy them again. I'm getting ready to put some Vapor Trails on it, and if I like them, I'll outfit my Highlander with them as well, though the stock strings on it are pretty decent on it, and I'd bet I have 15,000 shots on them and they're still decent though they've had extra twists added 4 times.