Thanks Barry!

I'm flying around sea level so either engine should be great - however, I do want a smoke system in this plane and right now Slimline does not make a smoke muffler for either engine....maybe by the holidays they will have one. Anyway, as I see it, the gas will be cheaper to operate but about 1.5# heavier with the engine and ignition battery & less mess.

The Saito is lighter, more expensive to operate, more oil mess....but won't I need a larger fuel tank for the Saito ~ 24oz?? vs. a 14~16 oz gasser? I will also need another battery for the smoke system (more weight)

Since I don't have a gasser maybe I'll give it a try.....this plane looks great!