Thundercloud Subs is an Austin institution. They have been serving sandwiches since 1975 and are, as they say on their webpage, "an engrained part of the Austin community." Heh heh. "Engrained." Not sure if they meant that as a joke or not. Since I am now "dis-grained" and an ingrained part of the Celiac community, I was pleasantly surprised to see that they are beta-testing a new GF sandwich roll at their Lake Austin Blvd. location.
Unfortunately, it wasn't very good. It was gummy and tasted strongly of bean flour. Points to Thundercloud for trying, but I recommend passing this one up.