I love you! This is exactly what I was looking at doing with my EVH5150III mini!I use 5 cable method with my Mesa dual rec revG...
Meaning normal 4cm, axe fx power amp off naturally, then the signal gomes back to afx from mesa slave out and that goes through cab block and goes direct line in for FOH. It's kinda complicated preset but pretty cool! So the FOH signal has real preamp and poweramp + ir OR AXE FX preamp and real poweramp sound if I want...
I love you! This is exactly what I was looking at doing with my EVH5150III mini!
Which output do you connect the amp preamp to on the axe fx? How do your patches look like to set that up?