Why not just tie on a string loop? Light cheap and more forgiving. The tube type peeps do suck speed from your rig and make noise. Not to mention the rubber could break and smack you in the face at full draw. Also the peeps themselves are heavier than a normal peep sight. I say ditch the whole thing and either get a different type of peep or get a No Peep and be done with it.

However with most of the newer strings peep rotation should not be a big deal. Once the string is shot in and the peep located right it should not move unless you do something to the string. It may take of bit playing to get the rotation right, but once it is there at full draw it shouldn't change.

Paul