Haha, I guess so. Well then, my bad. I've never had luck with an inverted 2S...but that was probably due to my inexperience. TF96, feel free to run that 2S inverted as long as a grey-beard helps you tune it .

Oh, and if I'm not mistaken....a properly set-up and tuned 2S will run a bit richer when the plane is run inverted (theoretically due to the carburetor being lower than the centerline of the tank and it siphoning fuel). An inverted 2S will run leaner when the plane is run inverted (theoretically due to the carburetor being higher than the centerline of the tank and losing the fuel draw due to siphoning). I had forgotten about that point. Of course, if the centerline of the fuel tank is lined up with the top of the carb you'll be fine....but I've NEVER seen a plane actually set-up as such.