I generally like to get 3 or more setups going at one time. Like one with one of my HD-130's [modified for Joe Perry/Aerosmith in the 70's] w/a Marshall 1960 cabinet fitted with custom "Weber VST" speakers; a Vox AC-30 and a Magnatone. I find that between those 3 rigs, as well as a half a dozen or really good guitars, we can usually dial in whatever tone we're looking for. A big one is getting them *all* off the floor. I usually use road case covers, but whatever we end up using, getting the speaker cabinet at least 18"s off the floor is of paramount importance.
Recently I've been using the 'Littlelabs PCP' unit as a 'splitter' with a 'Terminator G-4' [made by the Wright Microphone and Monitor company of Atlanta, GA] to get the guitar signal from the control room to the studio. I usually prefer the player hanging with me in the control room, it makes communication a ton easier.
For microphones, I've been digging the Royer R-121 in a big way. On the Marshall cabinet I'll put it about 18 inches off the logo plate, usually an excellent spot. There are times when I've stuck it into the grill, this gives up one of the "happy face bottom from hell" tones in a heartbeat...not a tone I'm expecially fond of, but alot of the 'Korn-abee's find it be 'the balls'...
For "tone #'s 3-8" from the same rig, a Shure 57 on the lower right driver with a Sennheiser MD-421 on the upper left driver, and an RCA BK-5 on the upper right driver [R-121 on the lower left, see earlier "Korn-tone" reference]...blend/mix/match to taste.
On the Vox, a 57 on one speaker and a 121 on the other works nicely...with the Magnatone, there's just something about a Coles 4038 in front, and a Shure 57 round the back [move the back mic until the tone gets rich and creamy!!] that I've had good sucess employing.
Doing demos in an apartment, I could see where the POD could come in handy...trying to get good tones from a good player for a record...I think I'd rather stick my hand in blender on "Purre" than have to use the 'Kidney from hell', or it's new 'rackmountable cousin'...absolute drek [IMHO].
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Fletcher
Mercenary Audio
http://www.mercenary.com