Hi, welcome to the forums!
No, you get into the law of diminishing returns. But there might still be some points out there for you.
Don't have all report $0. Oddly, most of us do better when one card reports a minimal balance. Don't forget to pay it off as soon as it reports, though.
If you haven't already, please read
Understanding Your FICO ® Score and
Credit Scoring 101 (at least the first post.)
These will give you the background knowledge you need to understand what you read here on the forums.
* 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