Well, I got home tonight and took a look at the rip after being epoxied and clamped tight for 24hrs.. Not bad - I think it bonded well, but I didn't have the arm perfectly square with base, so there is a slight hook to it. I put the motor back on and took it for a ride tonight.. Put 2 batteries through it.. first flight was a cruise, 2nd flight was a ride.. No problem cruising around, flew straight, no real vibrations.. 2nd flight, I pushed it and flew it hard.. right into a fence and tree trunk.. Didn't break. Had another drop or 2 into the lawn and came out fine. Think it will hold up to a bit of punishment..