Tried to start my DL50 tonight to show someone and couldn't get it started. After trying everything I noticed this. It just snapped. This is my first gas engine and I was shocked. Plane doesn't really vibrate that much. Have just been breaking in the engine. It has about two hrs on it and was gonna make the maiden flight tomorrow. Guess I'll be getting a MG servo. I know there was a lot of talk about MG servos for the throttle, but I went thru my last several yrs of MAN and RCReport magizines and everyone uses standard servos for the throttle on gassers. There was a couple of digitals, but I saw none of the reveiwers using MG servos on the throttle, so I figured I was fine. Guess not.