Try the shops that would be affliated with the SunBreeze or Ramons. These are the larger operations with perhaps a more varied staff. We used the Scuba Hut last April to certify two new divers in damn rough waters and were quite happy. The shops listed in the diving portion of the AC Home Page seem to be the top picks. Most of them have their own web pages with a profile and resume of their owners and personnel.
We are usually in SP with two instructors, a divemaster and an advanced OW. (And of course the one non-diver) Inspite of that we are very picky about what operations we use, and ALWAYS use a local divemaster.