Hello, I will try my 2nd UCD 46, however, the old one (retired after 625 flights!) I used to fly it with the CG at 6" after, just want to know about your experiences, which is the best CG you´ve tried with this plane.
I have an O.S. 91 Surpass II pumped modified by me, hands down more powerfull than Saito 100 with an APC 15X4W prop.
DO you think I should modify the engine incidence and / or thrust angle?

Have my best regards.

Ricardo