my personal opinion: you are subjecting yourself to something like 24%-29% interest by paying the minimum each month.
That is VERY expensive to then find out your score didn't rise to meet your expectation.
If you have the money, pay off the credit cards and save yourself all that interest and let the credit score chips fall where they may
then you can use your cards each month with the commitment to yourself to pay them in full each month. Much better personal money management that way
