Enabling GL: Data Access Set at the user level

We would like to have multiple ledgers accessible to a responsibility.  We have set up a ledger set to this.  About half our users would like Ledger#1 as the default and the other would like Ledger#2.  We have come up with a potential solution where we would set up two identical Data Access Sets with the only difference being the default ledger.  Our thought was to then assign the appropriate data access set to the user level for profile option GL: Data Access Set.  Initial testing shows that this solution works.

My concern is that profile option GL: Data Access Set was not updateable at the user level until we modified the profile option definition.