You can actually wear out a Stainless prop...

[Airslot]

REELY, you can. I have no idea how old my prop is, but she is plumb wore out. I've been watching it for a while, but it is getting time to replace it. The blade tips are so thin, they are like razor blades. Tonight I notice that the blade tips aren't all there anymore. I suspected this because she just won't hang on through the trim range like she used to, that, and she's acting reel squirrly with the tabs now. Hmmm, guess I need pics to prove my point. I'm working on it ::)