Just got in from flying a couple more tanks though it. It's still locked in, haven't touched the carb for the last 10-12 tanks, spread out over the last 2-3 weeks of flying sessions, even though temps and humidity levels have varied quite a bit. Might be a little biased, but I'm impressed with the little guy. The biggest downside for me is that it doesn't flip start worth a darn. The rest of my gassers all flip start easily. In it's defense, it is cowled in. If it were an open engine setup, where you could get to the carb with your finger more easily, that might be a different story? Also, it doesn't take anything special in the way of an elec. starter to start it. I'm using a blue silicone insert on a 30 year old standard Sullivan that turns it over without hesitation - about what you would expect starting a glow .60?

O.S. looks interesting, but I'm not spending that kind of money on an engine. There was a day, but I'm retired now... -Al