Hi Jolyon
I know you said not to bother taking the akas and pkas out of existing entries, but on the theory that if they aren't there others won't use them, I deleted them from all the New Hampshire entries yesterday. (I'll get to the other New England states as time allows - Massachusetts probably today.)
Having done it, and replacing them with notes in the description block, I can give you another arguement for using them: It takes a lot longer to type the note than it does to type those codes! :~} (May not seem significant to someone doing an occasional locality input, but for someone doing them by the scores the extra time involved can really mount out...)
Efficiency, kind sir - efficiency!!! :~}
Al Plante