I had a crash and still trying too work out why. My P2 dropped out of the sky for no reason at all. Everything was checked, battery full, weather great, etc, etc Now I had the Rotor guards fitted and they are the cheap Ebay ones. I have no idea if they are different than the genuine ones but they must be dead easy to copy so I don't think they would be far off the genuine article! Anyway has anyone had any problem at all with these fitted. Do they interrupt the flow of air? The tip of the rotors are very close to the end of the guard, not touching just close. This is the only thing I can now think of that may of caused the fall? Any one had any similar problems. Oh the guy I bought it from researched solar activity that day and discovered quite a large spike around the time I was flying. This is not mentioned in any forum I can find?