I agree. I think it is important to note what those 2 other scores are, and how they compare to the perceptual/verbal.

Dd's tester made some additional important inferences based on what she observed on both achievement and IQ.

For example, she noted that her PS was low (meaning perfectly average) in the WISC, because DD was very careful and precise in doing her pencil markings. When she came back to achievement, she wrote beautifully even letters in her practice sentences. When explained that she needed to be fast, but keep writing legible, her first 2 sentences were overly sloppy, bigger. Once she got the hang of it, though, she got to a nice pace but kept even handwriting as well.

Tester then concluded, that her PS is probably higher than what was shown in the WISC. Nevertheless, it is important to know those things. In her case, if she needed to be accelerated, this shows that she could probably handle the pencil work.