It's been balanced without fuel and I messed with the needle valve setting some tonight, and it seemed to dial in pretty well. I did the pinch test on the supply line and the tilt in the air test and it seems now that I have the engine dialed in pretty well. I am aware that it is a "trainer" and trainers are docile type fliers, but when this one is taking off, it gets into a "stall look" attidude and you have to work it to get altitude. If there is any headwind, you have to constantly down elevator to keep it level. I was thinking of lowering the leading edge incidence more, since there is already one "thickness" of tongue depressor on the trailing edge. The down thrust on the engine is pretty signifigant, eyeball guessing about 10 degrees. I double checked the CG again per the specs and it was just a tad nose heavy from what i could tell. ( 1 ounce on the tail would level it )