[QUOTE=BaronJ;19785 I've also ground off the serrated cups from the end of the grub screws so that they don't mar the shaft when tightened.[/QUOTE]
Hi John, nice work. A tip I picked sometime ago, was to drill the ends of the grub screws and place the little brass screws from electrical fittings, so they don't bite into the shaft, as even without serrations, they still bite into it. DAMHIKT.:doh:
Drill the hole slightly smaller than the shaft of the screw and hammer them in.
HTH
Kryn