Well,I maidened it today and had some issues that need to be worked out. It barely cleared the trees as it seemed a bit underpowered with it 18x6W prop which was made worse by its being too tail heavy. I think I know why it seems a bit underpowered though. I know while testing the engine it seemed under prop'd with its 18x6W APC. I was turning 7500+ rpms too easily and had to run it overly rich to keep it under 7500(any more and its screaming too much for my taste for this engine). .....to the point that any more rich and it starts to hit 4-cycle mode. Wish it had a walbro instead of a Zama now too. So I was just wasting power. So,were gonna try an 18x10 wood prop and shift the rx battery from behind the wing to under the cowl. I handed the controls to our club instructor after the first turn after I took off because I didnt want to take any chances. He said it didnt seem too underpowered,but the elevators were VERY sensitive(tail heavy) which might have made the take off harder then it should have been. So,we'll make some changes and go from there when the weather cooperates again.