Seems like that could work but you would effectively be pushing them all into one mono channel which would sound like neither amp/cab but instead some hybrid sounding set up. You could pan the chains hard L/R and record two mono tracks one on L and the other on R input. Then you would have two the exact performance in mono with different combos and could pan however you want in the final mix. Lets call those tracks R1a and R1b. Then do it again with alternate rythm track and well call that R2a, R2b. So you would have 2 performances and 4 tracks. Then you could play with panning something like 100/80/80/100 with tracks in say R1a/R2a/R2b/R1b order. Its kinda of endless possibilities. So many choices so little time for me.
I have actually done the above with a wet chain and a dry and played with the dry track and other VSTs and re-amp back through the Axe.
I usually just dual track rythms L/R and play them differently. I don't quad track mostly due to time and challenges playing in absolute sync with myself when attempting to play "exactly" the same thing. I may have to try what I suggest above and see if there is any value in it when everything is in the mix. Not sure of the merits since it although it could be up to 4 different tones, it would still be 2 performances. Axe-PC could certainly expedite the process of finding tones that work well together.
Glad you are digging the EMGs. I still have the 81/81 set you should buy for the other guitar! :lol: