I highly recommend Kenan at FAST Inc. He's someone I will continue to train with as long as I can. Truly a wealth of knowledge and experience:
Advanced Firearms and Tactical Training Central Texas Shooting School
If I'm not mistaken, he trains out of Chappell Hill, correct? I was hoping for a little bit closer to SA.
For the San Antonio area try Criterion Consulting.
You can also checkout Lonestar Handgun in the Schertz area.