castortroy 2150 - I live in Lexington so am near you. I have run many super tiger engines and would be willing to help you break it in and set it to run correctly. give me a call at 884-2389. I usually fly at the Bellville field near 71 on Bellville-Johnsville road. the main thing is to get the fuel tank setup at the right height for the super tiger - this applies for most engines not just super tigers - using the right glow plug - not the one that comes with the engine - and if you have the ringed version you need to break it in on the ground to get the rings seated fairly well before you fly it. I use fox r/c long plugs for breakin, and os f plugs after breakin. I use 10% omega but some say the tigers run well on lower nitro fuels. there is no adavantage to going to nitro above 10%.

good luck

Ed