I'd give them a solid 8 if they are on a ranch that's not over hunted. Sadly some of the brokers and landowners in the area are convinced that they have the deer densities of the hill country and want to put 10 or 12 hunters on 2000 acres. They talk management but dream of more money.
That being said, there are some really big deer in the area, especially in the river bottoms. The biggest 8 point that I've ever seen on the hoof was in Hardeman county.
In every old body lives a young person wondering what the hell happened!