I would highly recommend Protech dive shop. We returned on 8/19 from two weeks in AC. As new divers we followed a message board recommendation to use Protech and were really glad that we did. Wonderful friendly skilled dive staff who through their patience and instruction significantly helped me improve my diving skills. (Enough so that I dove the Blue Hole as my 22nd dive and had an amazing dive with no problems - it was in all honesty one of the best days of my life - incredible experience). The most we ever had on a boat was 12 (which they broke into two groups), but that was the exception, not the rule. On many days it was about 6. The shop changes out their equipment every six months - so all the rental equipment is in excellent condition. (Roni the owner told me they were just getting ready for the latest order to come in from customs) I will give more details in my trip report if I ever get it posted but you can't go wrong using this shop. Enjoy yourselves. mobunny