Thanks very much, CDR. The NH race doesn't have a Cat 5 for those of us under 45, and weekday races will be tough to fit into my schedule, although I plan to keep them in mind just in case I can break away from work early.
Regarding whether the weekday "training" races count, my understanding from MABRA is that they typically count for Cat 5 -to- 4 upgrade only (so suit my purposes for now).