Each CRA (EQ, TU, EXP) uses totaly different scoring algorithms (mathematical equations) in generating their scores. And each, as you have pointed out, have different credit reports before them that form the data to run through their totally different computer scoring algorithms. So it is a factor, both of diffent data in their database, and different formulas used by them when they crank that data through their formula to arrive at a credit score. Neither is privileged to the model used by the others. Each are in business to sell their scores. They make no attempt to seek uniformity, so neither should you. So an increase that you show in one category affects their models very differently. Dont try to understand it, for they are trade secrets that you will never uncover.
So the dilemma for the consumer is not to reconcile the different credit scores that each want to sell to you, bur rather to know which score is most important to YOU!. The myFICO score, which is the consumer score sold by FairIsaac, is the score used by most lendors in their decsion making. EXP and TU scores are used by the minority, are thus referred to as FAKO (Fake-O) scores. You just have to know what scores your lendor is using. If in doubt, just assume that is the true FICO, offfered on myFICO, and ignore the FAKOs. Dont get hung up in the score d'jour that varies with the chef of the soup. The taster of your soup is your lendor.
Starting Score: 469