After I shoot several shots, say 20. My stringloop starts to rotate for some reason and causes my peep start twisting out of alignment. I have Zebra twist string, so i know the peep is in the center of the string and if I rotate the string loop back inline with the peep then I have no problems until 20 shots later when I have to line the two up again. I use a TruBall rackmaster loopmaster for my release. Any ideas?