What is best way to allow conflict in the rebase period?

Q: My question is resource mailbox update. We have 4000+ more resource mailboxes and all of them on one Exchange VM in 4+2 nodes cluster. We registered them with AAA with no conflict. What is best way to allow conflict in the rebase period?
A: Set the conflict count to 3 during your rebasing effort, and then set it back to 1 when you are complete