I have one...I can't using a gas plane on this plane. If you want gas go just a bit bigger and get a 50cc. If you go with a small gasser like a G-26 I can see it being overweight/underpowered.

Just my opinion. I know some in the big thread stuck a ZDZ 40 on it... I have an OS 1.60 which was cheap and it balanced perfectly and vertical is real good.