Zach, just a cautionary note about publicizing carp spots online. You are correct that there aren’t many people fly fishing for carp, and those few people aren’t likely to have much impact on a good flat even if you post directions on the Internet.
On the other hand, a couple rednecks with bows can wipe out your carp spot completely in half a day. I know, because a couple bowfishermen floated into my favorite carp spot toward the end of last July and shot every carp they saw. They just shot them, dropped them back into the water off their arrows, and left them dead, floating in the water. Best I could count, they killed over a hundred.