Would you rather have an apple or an orange? What I'm saying is that the planes are VERY different from one another. While I have not flown the UCD, I'm guessing that the Katana flies much more like a larger SA 3D plane, and the UCD flies more like a profile fun fly. The UCD would probably be a better 'floater' with a lighter wing loading but would fly more like an over-powered leaf than an SA plane. I'm not knocking the UCD...no flames please!

I fly the GSP Katana 140 and really like it...I'm sure I'd like the UCD also.

-Tom