I just wanted to hear some different opinions on this. Is the best approach to tackle one CRA at a time and get a report cleaned up and then move on to the next one, or dispute the same items with all three CRA's at the same time? I have had really excellent luck disputing online with Experian (I know this is the contrary). I started in December with 17 derogs. I now have 7. I have done a couple of disputes with TU online, but I have to dispute everything with Equifax via mail (CSC Credit Services), so I have not been as aggressive with Equifax yet. What has your experience been? Thanks.