I don't know anything about DAS, but DD with ADHD did the WISC IV and her perceptual reasoning score was about 13 points higher than verbal. Not sure what is "typical" for ADHD. Working memory was a bit lower at 96th percentile. It was her processing speed score that tanked. I can tell she has issues with working memory (for instance poor fluency with things like math), but not the kind that shows up on the WISC, apparently.
Current scores could get him into gifted programming depending on what the school policies are. Here (for the highly gifted program), the are looking for a composite score of 98th percentile but achievement scores also need to be that high. The critieria is a little lower for the "cluster groups" in the regular classroom, for instance having at least verbal OR non-verbal 98th percentile, rather needing a composite that high.
