Originally Posted by noahb
I think it was a defect. I have not even bumped the props. I do have several colors that I purchased from himodel. They seem to be fairly well balanced, with exception to the black. The ones I have are terribly out of balance. That may have been it as I was in a fast forward flight and beating on the quad pretty hard when it let loose.
Are there some high quality props out there for these, or does it not really matter?
Out of balance enough, and under alot of power/force could cause them to destroy itself. That was probably it.