I have one on my SQ2 because I got tired of the peep tube noise when I shot my bow. With the WC string and cable I picked up a few fps and put in a tubeless peep, after the initial 50 shots, the nock hasn' t moved one bit and the peep does not rotate at all, and that was almost a year ago. That' s no string stretch in a year, great product in my opinion, but you know what opinions are like....

If you want, PM me and I' ll let you know where I got both cable & String for $76 to my door....