Gallerypost... here is a serious answer for you...
Try gay goat content - it converts like crazy!
Seriously though, you will find that as long as the site you are sending your traffic to is the same niche your AVS sites, it shouldn't matter which sponsor you use.
You are right that they have all put out their CC before, but you are wrong that the got screwed! Most people who buy a free pass like SK and FNP know the terms of their membership and cancel their $30 membership to the pay site before it rebills. They know the terms with which they sign up under and there is no way they get screwed!