Not something that I've had a lot of data on, but the few I've followed up on regarding this have reported different items... I've found if the scores are already excellent (720+) that there is no change, or only a couple point loss... but for people with lower scores have seen a bigger hit to their scores. In either situation, with enough positive reporting trade lines, it seemed like they were able to cover from those lost points within a couple months. I've never seen anything dramatic on points loss, but I've read here at the FICO forums and other boards that some people have experienced a pretty significant (20 points or more) loss, and there seemed to be no rhyme or reason to it.
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