Since you don't have the time or inclination to test them out, you should just stay away from programs with xsells then. Affiliates who turn a blind eye for the large payouts only perpetuate the problem. And I'm not saying you are doing so, but there are a lot of affiliates that do.
Oh and thanks for the correction on my use of the term XSELLS. I wish this was the biggest problem we have with them
