Incremental Build Styles (1):
Pure strategy 1 (client-sequenced): For one client, change all variable references to ghostVars (role-swap this client’s use of all migrated variables).
Pure strategy 2 (server-sequenced): For one migrated variable, change all client references to its ghostVar (role-swap every client’s use of this variable).
Mixed strategy: Alternate between the above, depending on guidelines (TBD)