They are very good, but not perfect by any means...the holes in the tail surfaces on my plane were burned for a 8/32 screw to be used as a control horn, but the screws shipped were much smaller, so the fit was extremley sloppy
That's true. I solved the problem using 2 larger nylon washers, one on the the top and one on the bottom of the elevator and rudder. It's holding pretty good.
I'll post some pics.