FC exportdomain

Is there any special procedure for using an FC export domain for exporting from RHEV2.2 and importing to RHEV3.0 ?

Our NFS exports are toooo slow, so I'm considering if we should try FC instead. Will it be OK to create the FC export domain on RHEV2.2, export a bunch of VMs. Detach it. Then zone the LUN over to our RHEV 3.0 environment and import there?