I decided to install Micro servos on my new UCD 46. HS 85MG on ailerons (42Oz), JR 368 Micro Digi MG on Elevator (53Oz) and Hitec 545BB for Rudder (61Oz).
i just thought , this way i can save some weight. those servos are stronger then the STD servo that seems to work on UCD as well.
and they are Metal Gears so they should hold. i just need to find long arms now for those JRs and Hitecs ...