Rob/pa
Over time a release aid on directly on the serving will wear the serving but it does take alot of shooting with todays serving material.

That is true! I think a lot depends on what style jaws are on the release though?Me and my brother both soot off of the same style custom string, he has a Winn free flight and his serving is pretty torn up. i shoot a ??? release(old school) and my serving still looks brand new. If I had to guess I have probably shot 4000-5000 more arrows then him the past two years??

But it basically comes down to what you said eventually it will wear them out!