Be careful with this one... it's the best way to break a strand if done at full poundage. I'll still press the bow to do this. To rotate the peep 1/4 turn twist the string at the bottom cam, for 1/2 rotation either remove the peep and reverse it or twist 1/2 turn at the top cam. If you've got a solocam you're stuck working from the bottom cam only.

Using the loop to correct rotation works for small corrections but I don't like to rely on it, it's a patch not a fix, same with the peep aligner/tubing.