I just put a g5 metapeep hunter series (3/16" diameter i believe) on my bow this year. Love it, it's quiet, my groups improved and i dont have to worry about that dang peep tube breaking when i go to full draw like it did last year! However, i dont shoot a d-loop so i put a tru-peep aligner on it to, i have had a chance to shoot on a chrono but my bow is quieter and shoots faster now. My neighbor also experienced the same effects.