Contact Washing Machine with CRM Integration

Is there anyway to keep track of which contacts you run through the contact washing machine are actually edited? Our data syncs over from CRM every two hours, so all of the clean data gets overwritten again. I'd like a way to push the updates back into CRM, without having to push all of our contact data back over (not all of our Eloqua contacts live in CRM).

Does contact washing machine keep a record of which contacts get edited that I could use to create a shared list?