I hunt hogs around Austin year 'round (Llano and Elgin) Your best bet for hogs is night hunting. I use a Tactical Devices Bowlight. It is like a police Streamlight that has a red LED so there is no loss due to filter lens. I do not work for them, but they are located in Austin. Their light was what the local pro-shop Archery country had in stock so I bought it. It is good. The Texasboars.com guys have a similar light that you can get from Cabela's. I hear it works well.
The light screws into the stabilizer hole on my wheel bow, but I also duct tape it to my 45-70 or my longbow as needed. Pressure pad trigger turns it on, so you have to practice with it so it does not ruin your form.
Sit in the dark until the hogs come in to your corn. They stop and make a bunch of noise. You point your bow up, turn on your light, draw, and slowly lower the red light on to the hogs. Do this slow and quiet and they will not spook (usually). Pick your target hog and your spot and send the arrow. The stuck hog will run away. Don't move. Let him run. Sometimes the hogs will come back if you stay quiet. Shoot another hog if you feel up tracking two and cleaning two. Wait 45 minutes and sneak back to camp. Have two beers. Return to the scene, track your pig(s), and transport him (them) back for processing. Now the manual labor begins.
Lemme know when you get to Texas. Hogs are my favorite to hunt and eat.