OK, so here's what I've got...
Epi LP > pedals (nothing on) > Radial Twin City splitter...
A > Mesa Stiletto > 2x12 Eminence Wizards > SM57 > Ch1
B > Mesa DC-10 > 2x12 Celestion V30s > SM57 > Ch2
Roland Duo Capture > Tape (by Focusrite) + "Studio + Reverb Mastering" > Soundcloud
Here's a clip of the intro riff to The Needle And The Spoon on my Epi LP, with both bridge and neck P-Rails running in P90 mode.
This next one is the same riff, but twice, both with the bridge P-Rail (hot version). One of them is series humbucker, one of them is P90.
I tried panning L to R with my iMac speakers, to hear a difference between the DC-10 and Stiletto. I could definitely hear the difference with my headphones on the output of the interface, but I'm having trouble hearing the difference here? Did it mix to mono somewhere?