Hi Randy,
Thank you for taking the time to answer my questions. I have one more. Sine I have no experience with the Nelson 422 engine, what is the best way to needle it so I don't hurt it. I have raced Nelson Q-500 engines, but I have heard the 422 engine is a different animal all together.

By the way I went to the H&M site and those are beautiful planes. I wonder why you don't hear more about them?

Jorge