Hi all - I recently purchased the Sony HXR-FMU128 as a backup unit for my FS700. I shot one wedding last week with it but I noticed that any time I used the super slow motion feature, it wouldn't record it to the unit. Anyone know what the issue is - or if there is a work around?

No it will not record off-speed material when in S&Q mode. It will record 50P and 60P though. No work-around as it is designed to do only that. I was going to buy one then bailed when I found it couldn't record the super slomo stream.