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Not enough information to comment really. We don't know if the OP has identical CR data between all 3B, or if his TU report differs from EX/EQ.
Perhaps OP is capped out on TU based on his scorecard.
If a score doesn't change for 10 months and you aren't changing your report (adding new accounts, etc) IMO it's capped by your scorecard.
Because all 3B are not created equally and they can behave in different ways when handling the same data.