I am following the plan that since I am a beginner with limited capital, I am doing majority of my sign ups as CPA in order to build some capital so I can do some more things to advertise and drive more traffic to my site.
Eventually, I will move these CPA sign up banners out and put more revenue sharing sign up banners in their place.
Just depends on what your goals are I guess. If you want a quick buck, or have a long term goal, go with CPA. If you have cash to spend and can wait a little longer to see some significant profits, then go rev share.
Just my thoughts.
cbruhn42