I ordered one, but havent decided on an engine yet. I read up to about page 8 of this thread and it looked like most of you were talking about the OS70, Saito72 and the YS63. I need some feedback from everyone with these engines on theirs. I would much rather go with a 4-Stroke, particularly the Saito or YS... How did it balance out? How does it fly etc...

I wanted to get the Saito72 but with the engine being lighter than others, I was a little concerned about it coming out tail heavy. The YS63 looks like a good choice with the pump, that way there wouldnt be any tank locating issues. If I went with the Saito, I could get a regulator.