If it is the Roger I am thinking about, he is the US Distributor for Tunze, which Aquatek is the exclusive local distributor for. I know he and Bruce have a close relationship, so maybe he did own it before he became Mr. Tunze.
As far as the stores, I like them all, and it all depends on what I'm looking for as to which one I go to. Even though all of them do SW, they all have their particular niches. I love Jake, Bruce, Hunter, and the rest. I think Matt is in a league of his own (and that is meant as a compliment). Austin Aqua Farms is something he should be hugely proud of, both for the quality of livestock and his success. And although maybe not a store in the LFS since, John and Brian at Kingfish have helped me immensely, and I have a great deal of loyalty to them.
Since Austin Aquariums closed, I have no complaints about any of the Austin stores. You will get slightly differences of opinions, and slightly different techniques, but that is the way this hobby is.
Stephen