One campaign I ran with c-p-a-l-e-a-d premium and I made $30. Next day switched to Adscend and I made $220. Next day I tested with blamads and made $32. Day after that I used leadbolt and made $48. Ran a custom content locker and made $350.
Same traffic, same widget design. Adscend deletes your gateways like crazy though. I've always had great conversions with adscend and I don't know why but all the other networks suck ass.
My conclusion, use your own content locker and get ready to bank
P.S - Meathead, I'd love to test your script