ORIGINAL: Osirisf16
When we are talking about the horn, i mean that plastic thing that in on the wings which are connected to the servo arm via a linkage rod, right? Just to be sure

Thanks for the help buddy.
Yes, you want the horn on the servos on the UCD you have to have the linkage closer "in" to the horn affixing screw, than what the manuals say.
Move the linkages IN two holes on the servo horns.
Leave the control surface horn as recommended, and adjust the throws by increasing servo travel.