If you can diversify your offers, I think that is always a plus. Is there any reason this would be hard to do with your site?
Sometimes a sponsor can have useful suggestions on ways to improve conversions, but, if it converted before, and you are not doing anything different, it is likely either (a) the sponsor or most likely (b) you are not getting new eyeballs and most of your old eyeballs who were going to buy that offer already did.
I say all this, but the cybermike plan of
wtf am I still paying for this site is sometimes my methodology, unfortunately.
