The local zip code diving phenomenon - no cave country political discussion is complete without that....but I'll assume you intended to make a point other than "local zip code divers must be better than non-local zip code divers".
Still, a lot of non-local divers would come close or even exceed that mark - some would easily exceeed it and I know some divers here who head south on every holiday weekend. We are not in that category, but normally we come down on week long trips arriving on a Friday or Satruday, staying through the week and leaving the following Saturday after 1 or two dives on Saturday. So that hits two weekends with dives in them during each trip. Doing the math for you that means 4 trips and 8 weekends per year. This year I had an extra short trip to FL and picked up another weekend, and had two more FL wreck diving trips where, had I known of this proposed requirement, I guess I could have hit cave country coming and going on one of them and had 11 weekends. Thus by your proposed standards, becoming a diver worthy of diving Waterhole III.
But alas as it was, sadly, I'm only at 9 weekends a year and obviously don't meet your stringent criteria.
On the other hand, a local zip code diver could do one dive a day on 10 Saturdays during a calendar year and still meet your criteria with a total of only 10 cave dives per year. Since we probably agree that is not enough to stay current, let alone highly skilled, your proposed criteria has some validity issues. This is particularly true when you consider the average non-local zip code diver doing only a single a 5 day trip to FL a year would get that same number of cave dives per yearm, but by the latter half of the week is potentially diving better than the occassional local zip code diver ever gets with 10 widely spaced dives per year.
So in short, you'd need to add some additional criteria and qualifiers if you want to go that route, or perhaps just go with a specific number of cave diving days or number of cave dives per year.

