My point is that you can get all that data (signups, cancels, refunds, chargebacks, etc) posted to your own DB so you can do what you want with it.
It sounds like Epoch will post cancel, refund, chargeback data to you after its happend, which is cool and something that CCBill doesn't do, but this doesn't mean the data isn't available for your DBs with CCBill. It's just a little more work to parse it
Thats really beside the point tho, this thread was originally about CCBills linking codes falling short, and by default I think they do. I offered my solution above and I hope it can help some people out.