Good question. No, it wasn't a T-6 Texan II
This thing, whatever it was, was pretty big, straight winged, had a very long glazed canopy, and a very large radial engine. It was just lumbering along making a wonderful sound.
Because the sun was in the way, I couldn't make out it's markings. In otherwords, I don't know if this was someone's personal warbird or part of a collection ala the Commemerative Air Force...
Just give me my Vario, my Ozone Mojo and a gorgeous day of soaring.