I have the same limb savers (stick on type) on my Hoyt Striker 2 (redline cam) since I got it in 1999. Don't notice any difference in it. There was some talk about a year ago where they were ripping were the "mushroom" attaches to the stem. Other then this I can't see them wearing out if they are still pliable. I'm sure someone will let me know if I'm wrong though.