No, John, you're right. It's a tough call right at this size. I used to hate all the fuel my Saito 120 and 150 used and all the slime that went with it, and always thought that I'd like to go to gas when I get to this size. But I AM aware that with the existing technology on the smaller gassers there is some additional weight...I suppose the individual plane will determine whether it's a penalty or well-thought out application. For instance, Great Planes had to use an additional 20 ounces in the nose of its Giant Scale Super Chipmunk test models to balance them with the Glow motors they used. Now, why couldn't I use a G-26 with electronic igniton (lighter) or similar small gasser in the nose of something like that? Seems like a good way to put the extra weight to use. And at the other end of the spectrum, I have my doubts on this Ultimate Bipe because I think it really WOULD be a weight penalty. Brings to mind one of our old field quips; "All the glide characteristics of a manhole cover!"
Decisions, decisions....

Jim