there is a video on specialtyarch.com showing the best way i've ever seen to tie in a peep. it connects the peep to the string - and you really can't move it w/out trying very hard, and it does it w/out affecting the gap above and below the peep. if you affect these gaps at all while tying in a peep- sooner or later the serving will slip down the gap, and your peep will change. anyway, its been one of those things that's just really made my life better. its a technique i'm very excited to show folks whenever i can.