RCRAINMAN,
I have the same engine, a OS .40 LA and my first 8 (yes 8) landing were all deadstick. I got sot frustrated with that motor I almost gave up on it. Finally had to put about a gallon of fuel through it and idle it up way high before it would even think of idling down while in the air. OS has definately turned me off with this motor, I'm a TT guy now for sure... neither of those engines has ever given me a problem. good luck with the OS, let us know how it goes...