Switch Drives between B800i and DroboPro FS

I currently have 2 Drobos
B800i Firmware 2.0.4
DroboPro FS Firmware 2.1.5

We currently want to switch all of the data around. The B800i has the faster iSCSI connection so we want the data on the DroboPro FS on it. I read that there is a way of power down the units pull all the disks and move them over to the other Drobo. Power up.

Will this work in my case?

Thanks

No it doesn’t. Disk pack migration from the ProFS to B800i is not supported.
http://www.drobo.com/resource-center/migration/

Thank You