Flashcash gets
The 50% plus exit traffic is a great proggie for webmasters that know how to use it, that's why they haven't switched anyone over to the 65%, and why its still available to sign up for.
You get 65% and they keep the exit traffic, or you can have 50% and send your exit wherever you want to.
If you know how to handle your exit traffic it can be a very lucrative program.