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Are all scores FICO scores, or are they Vantage scores? Apples and oranges....
If they are all true FICO scores, it is not uncommon to see a variation of 20-30 points between them, for each CRA licences different versions of FICO scoring from FairIsaac. But that kind of diff is very abnormal, and probalby due to diffs in their basic credit report, from which scoring derives. Scour your CRs for differences.