I think you're asking about the util (utilization) --amount owed (debt) divided by the credit limit.
If so, you're right, FICO scores are more sensitive to revolving/ CC debt than they are to installment loan debt.
It's fine to pay as scheduled on the SL, but do your best to pay down the CC debt.
* Credit is a wonderful servant, but a terrible master. * Who's the boss --you or your credit?
FICO's: EQ 781 - TU 793 - EX 779 (from PSECU) - Done credit hunting; having fun with credit gardening. - EQ 590 on 5/14/2007