Just out of curiosity:

What/when would I really use the primary user? We only assign bundles to the actual user (not workstations). Patches are assigned to the devices themselves

Is "primary user" kinda like the "logged in user" in ZAM?

What if I set it by usage and recalculate every day? Does the server (the ZCM server) do the calcs or is that the workstation itself?