RE: Off the string or loop
Surprised no one has mentioned peep alignment yet.
Evidently not all strings (just the ones on my last 4 bows) can accomplish this. But I have had great luck with using the string loop to align my peep sight to come to the eye perfectly, shot after shot. This allows you to loose the rubber tubing and go to a peep that doesn' t have a 3rd strand in the way to look around.
I have also noticed very little as far as loss in draw length. I install my loops, shoot the bow a couple dozen times, and then reshorten the loop to just allow the jaws of the release to fit behind the arrows knock. You can also ajust your release to a shorter arm to make up for the difference.