With servos with metal output shafts, do you loctite the arm retaining screw, or is the grippy washer enough?
By the what Jon & Chris, the jig for enlarging the hole in the tail worked well, 4.5 hours to design it, build it and test it. :evil:
Okay, I used masking tape, a steel ruler and a scalpel, but the jig would have been more precise!