From what I've heard you can't really overhone on a coticule so more strokes do not hurt the blade either.
BTW Bart, I got my parents to pick me up a DMT 1200 while they're in Florida! That should solve my problems with the coticule bevel setting business. Now I'll be able to use the DMT, Belgian blue/slurry then coticule with water.
Would a few passes on the coticule with slurry after the DMT 1200 help or?