Tuning the engine running is the only way an engine can be tuned and know it's right. To each his own! I know I'm getting the most out of my engine, without the worry of wether it's to lean, to rich is easy to tell, too lean, which can be more damaging is not, not until the engine dies, by that time it's to late.

But by all means don't let me convince you to do it my way, if your happy doing it one flight at a time, so am I. How many times have you read threads on RC Universe, trying to get an engine to run right? Half the threads are about how to tune an engine, my way is perfect.

BTW I have never in 25 years running gas, have I ever been nicked by the prop! Lucky? Maybe, but I don't think so, just careful.

Dale