I recommend Discovery out of Moorehead City. If you go out of Wilmington try Aquatic Adventures. I used to live in NC and those two are who I would go out with the most. Spar is a great dive and one highlighted on Shark Week on the Discovery Channel. Long trip out but great dive with usually great vis. Papoose is closer in and also has Sandtigers, and a shallower dive at about 60-70 feet.