I guess I was one of the unlucky ones.

The new engine that they sent me is great, starts up every time and tons of power, they said the old one had an air leak in the carb. I'm actually selling the twist right now and putting the engine in an ultra sport 40. And I'm sur the servo was a fluke, I just didn't want to take any chances. The fact that they are very slow also probably influenced me to change them out.
Austin