Final guitar tracks - Solo, Fills, and Crunchy Rhythm
Fender Strat -> Boss Super Overdrive -> Fender Blues Jr.
Mic 1: Shure SM 57 (1" off grill, about halfway between edge of cone and dustcap) -> Ramsa mixer pre -> Interface
Mic 2: Cascade Fathead (6" off grill, centered on speaker) -> FMR RNP -> Interface
I set this up to give myself a couple of fairly different options to work with at mix time, rather than being summed together (which sounds like crap due to phase issues). The pic posed at the end of Page 1 was intended for possibly combining the signals of the mics, and they were set so the capsules were both the same distance from the speaker cone, and therefore in phase. However, there were other issues with the tracks from that day that had us take another run at it.
In this setup, both sounds are good and very usable. The Fathead backed off the grill gave me a very good representation of the entire speaker. Being a figure-8 pattern, the Fathead signal also includes a lot of roomyness that sounds really nice. The SM57's sound is very focused, intense, and dry. Either one have their place, but as I've been molesting the mix along the way, the Fathead seems to be a better fit.