I just recieved my 50cc Sbach yesterday and am looking for someone who has built this plane and flown it 20 or more times. After unpacking it and examining all the air frame I was amazed by the ultra thin motor box is. It's actually thinner than the 30cc Sbach I had. My question is, has anyone encountered motorbox failure or breaking from engine torque, or beefed up the box. Pictures of any reinforcement would be a nice touch. Thanks in advance.