Well, after an hour and a half and two tanks of fuel, I think I've got the engine tuned well enough it wont die in flight now. I've got the low speed needle set where when you pinch the fuel line off, the idle increases just a bit, then it dies, then I peaked the high speed, then richened it a couple clicks. When held nose up, the engine doesnt appear to be leaning out. It still isnt running perfectly though. As long as the engine doesnt stay at idle for more than about 10 seconds, it will transition just fine. But, if the engine idles for more than 10 or 15 seconds, when the throttle is advanced, it will begin to rev up to around half throttle, then it falls off and stumbles and tries to die, almost like it is starving for fuel. If you back the throttle off and play with it a little, it will go ahead and rev up to full throttle. The RPMs on the top at full throttle are a little inconsistent, like the engine is surging a little. My tach says the RPMs at full throttle are varying by around 250 RPMs. After being at full throttle for 8 or 10 seconds, it will smooth out. I'm baffled, as I've replaced the glow plug again, and replaced all the fuel lines just to make sure there wasnt a pin hole somewhere I was missing. Going to try to take it out tomorrow evening after work and put it in the air and see what happens then.