Well, finally happened, and a lot sooner than I had thought. I've only got about 50 flights on mine, and I noticed the other day that the engine (Saito .56) seemed to be moving around a bit. Pulled it out tonight, and found both mounts broke. Glad I found it on the ground.... well I guess I'm going to have to find some steel stock and make some new ones..... good thing to keep an eye on!