In case you're wondering (and I'm sure if you work with F5s often enough you've already figured this out), if you ever need to switch your Self IPs to different physical ports/VLANs and you have Floating IPs configured, just delete the Floating IPs, change to the new VLAN/interface/whatever, then add the Floating IPs back. It's just easier than any cockamamie scheme you might be trying to concoct to avoid doing that.