zgorf and others who use this 'recurring no shaving' Just FYI, processors use a cookie based tracking system since they do not install tracking software onto the customers servers. In most instances cookie software is LESS accurrate than PHP or SSI tracking.
Also zgorf - PPS webmaster programs who are not in financial difficulty rely on the OVERALL numbers. You don't shave a particular webmaster because they send traffic that doesnt' retain well. You don't shave at all. You look at the overall numbers, the overall retention of your membership base.
For example, if you retain your members for 1.5 months @ $39.95 with a $2.95 trial. That is an avg value per customer of $62.87
If you payout $35 per sign up you still make $27.87 per sign up. Of course you have expenses, payroll, overhead, etc... but sponsor programs also make exit console revenue. *note: some more than others
Ya know what, I'm sure some of my webmasters send traffic that is woth $90 a sign up and I'm sure some send traffic that is worth $15 but at the end of the day, it all averages out for me to make a profit paying $35-42 per sign up and giving rewards points

withOUT shaving!
That is what matters.