I'm looking for the the best pratice path for upgrading a SLSE 12 SP0 to SP1.

Catch - we are also using suse manager 3 and our keys are based on OS version so they get the correct repos. System is currently registered with our SLES12-SP0 key.

What I'm thinking of doing:

Upgrade the OS to SP1 using the CD method then re-register the system with suse manager using the SP1 key.

If there is a better or prefered way of doing this please let me know.