RE: Larger Revolver
I also think a .61 or .75 2-stroke would work fine too. I built a Super Sportster 60 from a kit a couple years ago that ended up being very heavy due to the liberal use of glue and reinforcements that I did. You noticed the weight a little on landing but in the air, a .75-AX pulled the thing around like a rocket. The Revolver has an even cleaner shape so I don't see why it won't fly just as well or better on that engine. I'd still probably go for the .95 if I did a 2-stroke though because I just like doing stuff like that.