Thanks for your mail.
As you note, such a change would break all other users (or at least all
users not using the default persistence manager). Therefore moving it to
another bundle is maybe a too dramatical change.
Now, what about a simpler solution: adding the evaluation of a framework
property.
By write and use a implementation of my own PersistenceManager the default
FilePersistenceManager start with the cm bundle and after this default
implementation, my own implementation with a higher service id. But my
implementation not use and the default implementation calls the
ManagedService
