I'd really like to see a UCD or other 3D plane for the 50cc size gassers. Make it as inexpensive as possible, say around $300-$350. Doesn't have to be a scale anything (Extra, Giles, Edge, etc, etc,) Just a BIG FUN 3D plane that will fly like the 40% stuff. I've noticed a lot of ARF's coming out for the 50cc gassers but their prices are pretty high ($650+).
The GP Patty Wagstaff Extra and the WM Extra are the closest so far. Make it light and BIG (1600+ sq in and under 15 lbs).
Meanwhile, I'll just keep flying the pants off the UCD (yes the wheel pants are trashed from too many nose high harrier landings).