Welcome janb from the Hill Country. We used to live in San Antonio and camped in the Hill Country and areas around San Antonio a lot before we moved here (just north of Houston). Lots of good places in the area to try. I can't help you much on the Class B, but ask your questions and you will get all the help and advice you can handle. Good to have you aboard and hope to see you down the road.
Welcome to the forum. Lots of information in the library here. We're from Plano and my brother lives in Spring Branch, overlooking the Guadalupe. We're retiring in a couple of weeks and going to visit him and his wife shortly thereafter.