Anyone switched to popunders? If so how did it effect your conversion rate?

I have a few websites with several thousand popup clicks between them. I'm thinking of testing out popunders once I get can hold of some decent cross browser code for it. Has anyone tried these? If so did you have much success with them?

Thanks

Several thousand isnt really going to earn you much more. Youll see your CPM drop fast and your users will hate you as well.