I just broke my quest. I was landing on our grass field, it was windy, and the wind was variable, so I came in a little fast and when the gear hit the grass it snap the whole front end off. I had the battier and the throttle servo up there to make it balance with the ST90. But it just broke in half. I had fiber glassed a strip over the landing gear ply on the inside of the fuel tank compartment, but should of glass the sides too. It was a very clean break. And it is fixable. But I think that maybe the whole front end needs to be boxed in if you are going to add a heavy motor. Those sidepieces are very weak. tg