I hate to say it, but the Rascal does fly more easily than a Cub. I have a 1/5 Sig Cub (as an L-4), power it with a .65 Saito, and it is great for scale flying, doing long-roll takeoffs, practicing side-slips on approach in crosswinds, etc, but the Rascal is just plain fun. I finally learned to fly it inverted, does pretty well. No way would I try that with my L-4, partly because of the emotional attachment to a plane I have over 400 hours building time; the rascal , while I wouldn't call it "disposable", has less emotional baggage with it, I'm willing to hang it out a bit more, and it's equal to the task(it's a better plane than I am a pilot

). I have been thinking about putting a .72 Saito in it, just to see what it would do. I have both the .72 and an .80 on the shelf; the .72 has the same size crankcase as the .56, so it will fit. The .80 is an older design, the case is too wide to fit between the mount rails. I tried putting a .65 in it when I fist got it, but the .65 is also too wide, its case is the same as the .80.
I saw several Rascal 110's at Joe Nall, a couple had gas engines. Didn't get to see them fly, though. Not enough room in the pattern, I guess, with all the CAP's, Edge's, Extra's Ultimates, Sukhoi's, yada, yada, yada.