So, with multiple subtests in three areas showing high, and two similar subtests in one area showing low, and with performance and achievement consistent with all of these scores,(i.e., knows advanced material, has difficulty with rapid retrieval and output), why on Earth would the tester think that any of the scores, let alone the numerous and consistent high scores, were an error?

If the tester has never seen a child like this before, (and has somehow lost the interpretation guide) perhaps he or she should get some input and advice from someone who has seen this pattern.