Ok, picture this: I changed over a 2x12 cab for a 4x12 cab in order to get a better sound for recording and then only mic up the bottom two drivers because that's what sounds best.
So why not use the 2x12?
If that's not enough of a surprise, it's even the same two drivers that were in the 2x12 at the start of yesterday's session.
But it does sound better with this guitar and amp combination and that's what counts.