Not TX, but FL FTers.
We started with GMAC, then switched to broker (that was renamed Poliseek) a couple of years later.
I tried to get other quotes as well. Called Miller Ins, no one ever answered the phone; called GEICO, they didn't do FT insurance; called another and they called back after we had already switched by doing an online QUOTE with Poliseek. I liked what I saw, so called and made the switch.
http://www.poliseek.com/