Hi James
I think the one you had during the Hi Gain Amp Shootout sounded amazing!
I've got a 2 Ch Rev F that I like a lot. I thought a lot about trying the other Revs, but decided to go a different route. Like you, I use my amps mostly for recording, and a good sounding 2 Ch Recto is already enough.
What I've done was getting a few different set of speakers, like V30s, Scholz, EVM12l, Greenbacks, 50w cast frame and Crescendo form Fane, C90s, etc...
I've found the 2 Ch DR an amp that seems to be picky about speakers, but it turns out that I've been recording it with pretty much all the spk combos above!
With the Scholz it kind of sounds a bit weird at first, but a few minutes adjusting the mics and bam! You get a smooth, still tight sound, with a low mid growl that you won't find anywhere else. One of the meanest tones I've ever heard.
The only other Recto I'm thinking about now is the new one. Maybe a Triple would make for a good brother of the one I already have, and sound different enough to justify having both.
All the best James!!!
Tiago