Thanks! For this I pretty much did as you say - I used two of the XPO stereo outs to the four 1/2/A/B ins on X-Pan and treat them basically as mono sources, and I modulate cross fade and panning for all of it so they swirl around. I also used two mono outs into the Aux channel. It’s more for highlighting the stereo overload you get from the combo as opposed to highlighting the native stereo you get from the XPO on its own (which is excellent and like the QPAS effect). Cheers!