Dottie --
From what I understood from our tester on the Coding/Symbol Search, Coding is usually included in the FS, not Symbol Search. You can substitute some tests for others within the same section. But since there was *such* a difference in the scores for KG, she included Symbol Search instead of Coding, feeling Symbol Search was a better indication of his abilities when taken with the rest of the tests. So only Symbol Search counted toward the FS.
I think you may be onto something with using all 8 scores ... would that have been a scoring error, then?