I think they become "redfish" about the SC-GA line or maybe a little north. It's crazy. Farther north, "whiting" are "sea mullet," and "redfish" are "red drum," "spottails," or "puppy drum." A friend of mine goes after them sightcasting with a flyrod.
I'm in East TN. I like the fly and float thing at SH and floating the North Fork. If you can find purple rooster tails in 1/4 oz. with gold blade, that's the bait I prefer for the river (over grampus, in fact). I also like Copper Creek (VA) and Clinch River. I don't know if Worden's makes those anymore. Flounder will gobble those up, too.
About 10 years ago, I saw a guy near the mouth of Hog Inlet at Cherry Grove, SC, wade across the channel at low tide with a fly rod and about five minutes in, he hooked a tarpon. I'd never heard of tarpon that far north. I've ALWAYS wanted to fish for snook in southern FL, but the only places I've ever fished in Florida are around Daytona (surf), Englewood Beach near Port Charlotte (back side of surf on the bay, my first time ever with live shrimp), and near Pensacola (surf and pier). When I win the lottery, my lottery house will be around Gulf Breeze, FL. HA
Just noticed your username. Those JCs are like fighting a tank when they get larger. When I used to fish a lot in the Carolinas, I'd try to show people the difference between a juvi JC and a juvi pomp, but sometimes they couldn't get it just right. I'd tell them, well, cut it open and you'll know really quickly. Now with pomps and permits, it can get a little tricky, especially the larger they get. But a JC and a pomp, well, it's crazy to me they can be in the same family. HAHA
Edit: I just see that I replied to a going-on-6-year post. HA