I've had my string served 4 times in the last 5 weeks. It has been done by 2 different pro shops twice and my friend once.My serving is'nt wearing out.It's just constantly creeping up the string and separating.I've tried braided fast flight and diamondback,as well as double nock points above the arrow.I am shooting a parker ul31 with tru-fire badger power grip single jaw.Please help before I crack!!!!! p.s. THE SERVING IS BEING PUT ON VERY TIGHT