One other thing I forgot to mention. Since that first run up with the Tribute, I've had no other problems with the included gear drive (other than the mid-air, not E-flights fault). Like you, I was ready to get rid of that gear box when it failed on the first run, but decided to call Horizion first and I'm glad I did. Only problem now is getting Horizion to support it's customer base out here with parts for these things! By the way, the cost for the replacement gear and shaft is about three bucks.