Change of plans: instead of faffing about and swapping the Stronglight cups to the Rotrax, the Rotrax will be getting the Bayliss Wiley bottom bracket and the Williams chainset with the 48 tooth Chater-Lea ring which is now on the Harrison. Then the Harrison will be getting the Stronglight chainset. Not that anyone cares, I just figure the older Rotrax deserves the older British chainset.
Phil