As I'm never able to leave anything alone, I did one more thing to my ROA.
There's a company that makes extremely precise shims that fit a variety of guns, including the trigger and hammer shaft screws of the ROA . These shims fit the two screw shafts very, very precisely.
http://www.triggershims.com/rsa_shims.html
I had noticed that the trigger while pretty darn good, had a fair amount of side to side slop to it. The hammer, less so, I would guess because it's Clements Bisley.
It took a bit of fiddling to get them in but the results are to my liking. Very little side to side slop/play on the trigger makes it feel crisper.
My only complaint is that there is more slop in these guns than I would have thought and I would have rather put in one or two shims rather than 4.