I have both a Montage & a Roli Seaboard. Since getting the Roli Seaboard I rarely play my Montage... playing Seaboard is so much more fun!!! I've tried connecting my Seaboard to the Montage using multiple voices all set to the same patch ... it works but is impractical to program and not worth the trouble. I'm guessing its the same story with MOXF. I would love it if Yamaha would update the firmware to be more compatible with MPE. If something comes on the market that is similar to Montage feature-wise, but is compatible with MPE, then I'll be selling my Montage to get it. I think as more and more people try MPE compatible instruments, the demand for MPE-compatible HW synths and workstations will grow significantly. Hopefully Yamaha will be there to support this demand ... or I think they will lose a significant number of loyal customers, including me.