Very interesting post. I was just rewoking my stereo setup in the Axe today.
Reading your post I got interested in knowing what the Mimiq pedal was. So I googled for it and red a good testing article.
Well, I must say that the stereo effects it gives is not impressive. I listened carefully to samples of it with a good pair of headphones and I finished wondering if such a doubler effect could not be achieved with the enhancer block in the FX.
So I don't really see the use of such a pedal in front of an Axe FX where we can already enter mono and output stereo (and I mean true stereo, not double mono).
But maybe I'm wrong and the Mimiq pedal goes beyond that...
I'll get inspired with your experience and will try to replicate that stereo doubling effect in the Axe.
Until now, what I was doing to output stereo was : mono signal > two parallel amp blocks (panned hard left and right) > enhancer block (modern mode, 50% width, 50% depth) > stereo cab block (with 2 different IRs panned hard left and right + a few ms delay on one side + a slight room fx). The result was quite amazing already.
Tomorrow I will try the enhancer before the amps!