With the three options of what it shows up on the USB as:
1 - Empeg custom device (as normal)
2 - Ethernet adapter
3 - Mass storage device
I can see where it might be helpful to have 2 & 3 at the same time, but it seems like it would be a very minor inconvenience to have to reboot to change between the two. With a reboot time of <10s, it's on par with Windows normal USB detection times for a device that's already on

If option 2 were implimented, would there be any advantage to switching back to the default (1)? I only ask since someone posted the desire and I can't figure out why.

Since I've got a Mk2a, I'm not as interested in option 2 as I am in option 3. But I think there's more Mk1 owners who would rather have option 2 than there are Mk2[a] owners who would want option 3. I probably wouldn't even use option 3 since that would mean physically close proximity of my empeg to my PC (and crawing around behind to plug in the USB cable).