Hobbsy, I've never seen a glow two-stroke engine that didn't benefit by having the mixture tweaked every flying session and sometimes multiple times during a flying session, depending on the weather and temperature changes that day. This isn't fiddling, it is running the engine properly.

On the other hand, I seldom bad mouth any brand of engine since just about every one I've owned has ran well after break-in. If it didn't I sent it back and had the distributor wave the magic wand over it several times.

Of course, I'm not one of those guys that leans the engine out too much in an effort to get every last rpm, either. I get the impression that you are not one of those guys either.

There are climate conditions that could explain your ability to keep the needles parked in the same spot. I'm hoping that is the situation. That, or you like to run a very rich mixture.

I have seen some of the fellows that you referred to also. Seems as if their engines never run right. I think that is because they don't know a good running engine when they see one.