Everything being the same between the reports the scores should be in line with each other. I tend to see a 20 point spread between reports even though they're mostly the same. I do have 1 account that doesn't report to TU at all yet TU seems to be my highest score at the moment at 818 while EX is 799.
I'm thinking there might be a descrepancy in reporting times from creditors as they seem to hit reports on different dates even though they're reported at the same time. But, I would see if you can get the colelction removed since you paid it immediately. Usually we say PFD before paying but, sometimes you can still get them to delete it after you have already paid it.
Otherwise it might be wise to do a spreadsheet of your accounts and make sure they match up across your 3 CR's. I did this awhile back because the #'s weren't matching up and found a defunked HSBC card from 2008 still reporting but inactive on one report instead of showing closed like the other 2 reports resulting in a $1500 CL mismatch.
