I had been running two rows with a send/return linking them in the FX3 - top row is stomps, amps/cabs, gate, and a PEQ, bottom row is time-based FX. I split the top row into separate presets and imported the top row presets into FM9, and they all seem to work ok with no CPU overages. A couple are a little prone to freezing up the unit's controls, though. Not sure why, given none are over 65%. Import code didn't quite do what it should? Dunno. Reboot fixes it. It's 1.0, so there are bound to be a few weird bits in there....