RCBOZO,

To be honest I do not own the UCD60 but I have flown one for several flights with a Saito 92 and it was a very nice flying plane. This gentlemen lets me test fly allot of his planes and all he mentioned that he did to it was beef the landing gear block.

It hovered very well, knife edge was fine with a slight pull to the canopy (expected since he was slightly tail heavy) inverted was a dream, flat spins were pretty flat both inverted and upright, and when I landed it it was very predictable and SSSLLLOOOWWW

It's way different from a Twist and if you could fly a Twist well then the UCD60 with be so much better. I had a Twist, loved it then went to the Funtana90 with a YS110 and what a difference. I still could do everything with the F90 that I could with the Twist but the F90 did it WAY BETTER