I built from plans a Sledge some time ago, but with a balsa covered foam wing and fuse. I first had a GMS47 on it but it was ultra pig tail heavy, so I put a GMS76 on it, what the heck. It stayed together, but everything it did was a blur he he. I also had a UCD60, first with a YS120NC, cool, then with a YS120SC, very cool and just the right amount of power if you ask me.
DKjens