I don't have a powerflyer but have used jazz drives with several of my Amigas as well as PCs. The disks were all formatted the same with one partition, so a diskchange was unneeded. The icon never changed but the contents would with a disk swap. Is it really important that the icons and partitions be different? Worked better than ethernet for file sharing large files quickly.
It should work for the zip as well. I never had the zip but did use a Syquest EZ135 on one of my 4000's in the same manner.
Hope it helps.
