I do have some domains that without question outperform at Parked over Sedo. These tend to be my lower traffic, type-in domains, with higher CTR. I do have some domains that get more clicks at Parked than at Sedo, but still make a lot less, because they get $.05-$.10 at Parked, and $.25-$.50 or more at Sedo. I also have some domains that get more clicks at Sedo for some reason, despite the multple clicks thing. My top domain got about 60-80 clicks at Parked on about 150-300 visitors a day. At Sedo, that same domain gets anywhere from 150-250 clicks on 300-600 visitors a day. I have been told a couple of reasons why my domains show more visitors at Sedo than over at Parked, but it does not make sense to me that Sedo could show a higher number of clicks in a day, than Parked showed as uniques visitors, given that they don't credit us the multiple clicks. Also, given that Parked was paying around $.03 a click and Sedo is averaging around $.05 for that domain, it is just one example of a domain that outperforms over at Sedo and I will probably leave over there (it is an adult name with large foreign %). Either way the customer service at Parked is great, and as I said at the beginning of the post, they do outperform with some names for me. I also have only tested a portion of my portfolio so far, and I am sure that I will find more that work better over there as I do.
Also, one more reason I get better performance, is because I do have many domains that actually need some type of pop-under program. $.50 a day on pop-unders is better than the hope of a click, on certain domains.