ProfilePilot
50cc
I had a lot of fun with with my Profile Hots and my Hangar9 Super Stick.  The stick is a work horse.  I ripped the tail off it by striking a rock during take off at a friends back yard.  Spliced it back together with some epoxy, and CA-ed a thin ply reinforcement over the splices for good measure and flies as good as new.  I have thought pretty seriously about getting a big enough  stick to put a 30cc gasser on it.  I think it would be a fun one to get into gas engines with (I haven't yet made the transition, but I am working on it!).