I also wonder why you're coming through on 75, unless you want to go through Oklahoma. The shortest route from Arkansas to San Antonio would probably be to take I-30 to I-35, but I would probably take 635 around the city if you're coming in on I-30. I'm old enough that I remember when 635 (LBJ Freeway) wasn't there (back in the 60s). Which reminds me, it fascinates me that back in the 60s a few people became hugely famous by their initials: mainly JFK and LBJ. Is there anybody in the history of the world with initials more famous than those?