I like CCbill, but over 2012 my autonomous back-end sales (in-house, NATS, MPA3) got 3x times busted (+300%), while with ccbill it's ~+30%.
I send the same amount of traffic to CCBill and autonomous programs. I come to conclusion that it's because of creapy CCBill billing and bigger number of PPS programs on NATS.
Find details on all affiliate scripts at:
http://www.signbucks.com/static/make...in-porn/page/4