RE: Worst part of assembling an ARF is....
Hah. I thoght I was the only one who had problems with control horns. I usually wind up with the holes just right, then I CA them and they don't line up anymore. Really bad since I favor the World Models style of horns with the three holes. One thing that makes it easier is I've started using 2-56 socket head screws to hold them in, no more slip of the screwdriver and hole in the surface blues.
Second to that, I guess it's putting the stickers on.
Andy