Strategy: Logical Maneuvers for Hard Times

This approach works if you’re typically taking the same level of circulation and the results and names from each co-op are about the same. Another approach is to send the co-op database the dupes from co-op lists you’ve used after every merge to suppress their own dupes against.

Best practice: When running the merge/purge, give priority to co-op databases over other outside lists. Have your service bureau give the co-ops, as a group, the proper random allocation.