I signed up for an affiliate program a few months ago. Originally they used CCBill, so I was a little reluctant to sign up as I've never done well with CC. I don't know why, that's just the way it is. Scrubbing or whatever. As expected, conversions sucked.
In the last month, they changed over to Epoch or something similar and conversions are more in line with my other programs. They're still running the CC account too, so I can look at the numbers side by side. (I haven't tracked down and changed all the referrer codes yet
)