How many snaps on the vertical up line? Even at half throttle where I have to fly it, the model will do several snaps going up before dropping off. A blip of throttle has it back on the line, and if I go to full, she'll take off like a rocket. The plane is 11 pounds, BTW, if anyone is thinking this is a light plane.....

I am quite pleased with the piped performance, finally, after all the crap at first. To me, having played with several engines in this displacement size, up to the 40ZDZ and Mintor 38, the OS is the best of the lot by wide margin. I am buying another for a new project