Hi,
I see no one responded. I don't know the area but I did see that there is a Tincher coach in Houston. My DD started out with a Tincher instructor and it was great experience. It was IR in our case.
I think, but not sure, Tincher is physically based in Florida.
What he has done is try to organize pitch coaches. He certifies them teaching what he thinks is the correct way to teach including mechanics and demeanor.
He is getting enough coaches out there were there are probably a few bad apples but the coaches have a good reputation.
It is called fluid dynamics, what this board calls IR.
We were with a Tincher Pitching coach in PA for 2 years.. gave DD a strong foundation. DD moved to a large organization 3 years ago and we now work with a PC in the org. She is an IR coach.