I am having a problem with my nock vane coming off. I shoot a Bodoodle Doodle Drop rest and turn the nock vane down with carbon express arrows. After about 300-400 or so shots the nock vane starts to peel back eventually coming off have only 1 arrow out of six with all 3 vanes. I am just wondering if it isnt falling away in time, but even still the vane should clear I mean they clear on a typical prong style rest. Is this just normal with this many shots?