Thanks. I've got a new 6TB drive coming in a couple of days (I tried an enterprise level disc I had snagged from the office on an off chance, and it was fine) so I've got a 50% uplift on my storage. The two VMs that are running are noticeably snappier on VMs than on Pis, which is nice. Particularly when browsing 9k music tracks, which now takes a couple of seconds rather than the Pi's 20ish
Once the drive upgrade is in place, I'm not quite sure where to go next. Just bite the bullet and try and connect the Zway stick straight into the VM. Try it with a new Zway stick for experimentation, or do something else.
I'm far more comfortable now, though. I have snapshots and OVA images and everything!
C