I was wondering here if anyone ever had this occur.All I ever shoot is self nocks.Now there are times when I'm shooting alot,and there will always be some number of arrows that you really really like.You shoot them alot.Seems every great once in awhile the nock will begin to loosen,but the serving is good and waxed too.Like it's getting worn abit.I don't like that too much.What I've done is put superglue in there and refiled with the little round file to get them to snap onto the serving good again,or an arrow that flies really nice that has a loose nock to begin with.Another thing is that I'll put horn inserts and the horn does'nt wear.Does anyone have a different solution for this?Maybe nobody has had it happen or they make new arrows.