I love that a guy is playing Chet on an archtop with a bunch of Orange amps in the background lol. Play some Boris next!
I consider the middle position on a two humbucker guitar is kind of a secret weapon. If I'm playing my SG or Les Paul clean I'm probably in that middle switch position. The two pickups in parallel get a single coil-ish type of tone. I know it's not like identical, but it's as close as you're getting without coil splitting or tapping.