hmm, I need to try it again but FW6 bricked my FM9T - totally unresponsive to button presses, also got Black Screen at 1 point, its was processing audio OK but just couldn't do anything.
Emergency Boot and revert to 5.01 and all good apart from the presets I'd saved at 6 which were totally screwed.
No point sharing any presets or sysex's as I put it back - the preset I was messing with (a 4CM one) was running 79/80 ish once I'd turned on the seamless stuff and put the Sunrise whatever it is drive model in my preset, then saved 3 copies of this to get the seamless thing going- caveat here is that I am also running old FM9 edit due to my Mac being 10.1 (so made those seamless setup changes on the unit)
All seemed fine on new FW until I turned off the unit and came back to it an hour later.
Once restored, I lost all System Settings, FC settings, per-preset etc all non-FW6 presets look to be OK from a block perspective - the ones I'd saved at 6 were blank apart from just a single drive in them? restore sorted it though and all good in the hood again.