I prefer to fly with the prop guards on (saved me four times this weekend alone!) but my case is not set up for storing with the guards on. So I've been taking them on and off for each flight. My question is, will this cause damaging wear and tear on the threads of the screws or the holes they go in? Probably a simple mechanical question but I've done it few enough times that I'm not worried yet but looking down the line I want to make sure I'm not shortening the life of my favorite new toy! Thanks.