Hey Deane - sorry your BK didn't work out. I like trying several boards too!
I was thinking of a BK7m and midi-ing it up to the PA900 live. Don't know how easy it would be to switch back and forth while using the 900 as a controller. Have you tried this route? No one on the synth forum is responding to my message. It would be an easy haul around this way with plenty of variety. (I'm planning on making my own arrangements, using the MOXF6 I have - at home).
Thx for your thoughts.
Korg PA 3X (76) / Korg PA 4X (61) / QSCK10s / Yamaha DBR10s / Yamaha MGO6X / EV ND96 / Adam F5s / Yamaha MG10XU / Senn HD650 / BLUE BB SL / Zoom Q8