Chuck, when I said "great", I haven't really tweaked it out totally yet, it's just that it was running horribly before with the bad tank. I'm running a 13x6 apc and have run almost a 1/2 gal. through it on the stand. It peaked at about 11,100, and I backed it off to about 10,700. I can't imagine what this thing will do when it does have the time on it and I get some "real" fuel, anxious too find out!.......can you say 1-overpowered-knife!.......man I LOVE that 4-stroke sound! I don't know if I'll ever go back to a 2-s.......Thanks for the fuel suggestion, my LHS orders a HUGE fuel order in march, so I'll probably get 2 gall. of 20/20 and 2 of 30% heli.