I've been shooting a string loop on some of my bows. I don't feel that it has improved my accuracy over shooting directly off the string with a caliper release. I did have some wear on the loop with a new release at a 3D shoot, I didn't have to quit but I was getting worried and my shooting reflected it towards the end. I just recently shot a BlackKnight through the chrono, directly off the string and it sure didn't slow it down any . I think shooting with a loop on the string makes more noise. I'm probably not going to use one again, seems like I've messed with the loop more than I ever did that shooting off the string. I keep looking at that little burned ball on the knots and it looks like they keep getting smaller and smaller[:-]