NC/SC either allows 5, or it's unlimited. (I don't remember, but I checked and my 5 hook rigs are legal)
Just some random thoughts. I had trouble fouling with the softer, more flexible rigs. I like the Yums, but not the light ones. You can bend the wires out enough to eliminate most fouling. I've seen Bass on sonar laugh at my "normal" A-rigs with 5 normal soft plastic baits, then had them attack it on the next cast after replacing the center/rear bait with a Johnsons Silver Minnow Spoon. I believe I saw someone here recommend the spoon, perhaps Tom/WRB.
I've had a couple doubles, but no tail or gut hooked fish. I fizz them when they come from deeper than 25 feet.
A friend told me if you hook one on an A-rig just let it swim around and you'll end up with more. I haven't and won't do that. That seems to me like a good way to injure fish. If this is true perhaps A-rigs should be illegal.