Updated this afternoon, no issues, all settings and audits are retained and the sound mod still works.
It's worth hooking up a USB extension cable so you don't have to remove that hefty back glass each time. Not just because of the weight but it's also wired up.
I've cable tied the USB extension in so there's no risk of damaging anything if it gets pulled or snagged on something.
That's a great idea. That backglass is a beast!