OK, have flown my stearmen 2 evenings now, here is what I have learned. I should mention this is my first biplane, first gas engine and first smoke system. My first flight up was a nail bitter to say the least, the plane was climbing wildly and turning to the left big time. I trimmed an trimmed till it was flying hands off. This thing flys heavy I thought to myself. Right about then my motor died. This is no glider, it looses altitude fast, pick a spot in a hurry. I bent the landing gear and ripped a hole in one wing. Easy fix in the shop and I was back in the pasture to try again. Second flight was better because I didn't have to deal with the trim. Flew around a bit and couldn't resist trying a hammerhead. Hammerhead was beautyful, but now I am dead stick again. Made the runway this time but went off the end and flipped over in the long grass, no harm done but enough for the first night. Re-tuned the motor, I was lean on the top end. Second night was teriffic, motor ran great, tryed the smoke in the air, looks awsome, flew some touch and goes. This one looks very scale in the air, I like the sound of the gas engine. I flew 5 tanks of fuel and five tanks of smoke oil and got everything tunned nice. With my 16 oz oil tank, I can get about 5 minutes of good smoke during the flight. I was using a 20x 10 prop, and will be trying a 20x10-6 next time up.