I put an os 1.6 on mine and it was just the right amount of overpowered for me It seems like it would be light on power with only a saito 125 for 3d work. The 3d profiles running saito 125s are only in the 7 pound range, the 10 pounders are running saito 180 or os 1.6 mostly. I would go with at least a ys 110s or saito 150 if I wanted a 4stroke glo on it. The problem with 4 stroke glo on this airframe seems to be more vibration issues since its built so lite, which is why I went with the 2 stroke. I originaly had an evolution 26gt2 with a pitts muffler and the pull out was lacking, the OS fixed that little problem right up

Im getting ready to put a set of hanger 9 27% extra 260 wings on my baby edge. Both my wings got nuked in a little accident with a run up table and a bad fail safe setting [:@] Not sure how its gonna turn out but I have the stuff laying around so I might as well give it a try. With the 1.6 and a couple hundred more sq" of wing it might be really sweet if it flys right lol.