The only problems I've seen with the Tower .46 is ignorance and operator error. If you read and follow the instructions you won't have a problem. Had a new flier at our field that couldn't get his Tower .46. running. He couldn't unerstand why as " it ran on the test stand". Turns out he disassembled and cleaned the engine post break in and didn't reinstall the O ring at the carb/ case interface. Put an O ring on it and it ran like a champ. I also like the TT engines.

Darren