Waldo,

The .60 flies much like the .40. It is a little touchier CG wise. It has a small window where it really handles well. The roll rate is slower, due to the bigger wings I think. Other than that it flies very much the same. It is a fun plane.

Dutch,

I have an OS .55ax and the thing is awesome. I have it on a .40 size carl goldberg extreme. It has close to the same amount of power as the .61, but lighter.