Welcome, @Anonymous. I concur with the above assessments that "mortgage" scores are more sensitive than FICO 8 to just about everything (except for the lack of an open installment loan).
But that doesn't really matter. Leave a small balance ($5, but not much more) on the Indigo card. All other cards, including the AUs, should be at zero. That will net you your best possible score. You might be able to pay less and still get your six points, but why risk falling short?
