As stated, most of the deer are down in the low country (mostly private) by the 4th season. That is why it is one of the few units that have an easy to draw 4th season.
So if you can possibly line up some private ground to hunt on, you might do fine. So, finding an outfitter with some private land might be the thing to shoot for.
You might also call and ask the local DOW people if there are pockets of low country that are public.
txhunter58
venor, ergo sum (I hunt, therefore I am)