I use a loop as well. I had tried the metal loop, (screws kept backing out on me, even with loc-tite on them), and a loop made of flimsier material earlier in an effort to get my peep sight right. I hate a peep that won' t come around for me, and I don' t like the rubber tube. Tried a stiffer one this year and it' s working great. Just a crisper, cleaner release every time.