I am also concerned here, because my third arf will be a ucd3d
it's already in the workshop and I will start on it as soon I have finished with my other project.
I saw plenty of thread talking about mods on the ucd3d, but I plan to build mine fully original with a os 91 surpass II and good BB servos.
what do you think?
Are some mods crucials? (I don't talk about reinforcing firewall and gear)