Sorry not to have replied sooner. I've been off the board and busy! Just for background, I'm not a psychologist. I am a parent of two HG kids, one of whom is twice-exceptional, have some education in psychological testing, and have had some people share their kids' scores with me b/c I am a GCC for my local Mensa group and they were seeking input from us as to local schools, qualification for Mensa, etc. (I've also seen my own kids' scores of course -- lol!)
At brief glance, I'd say that there is nothing wildly concerning in the scatter of his test. A normally developing child is expected to have scores that pretty much cluster between 8-12 (the 25th-75th percentiles). These are all considered within the realm of "average" on the WISC.
The Gifted Development Center has an article in which they look at all of the subtests and say which ones are the most heavily "g" loaded (i.e. -- which are the best indicators of high intelligence). You can find it here:
http://www.gifteddevelopment.com/About_GDC/whoaregiftd.htmYour ds does have some scores that are outside of that "typical" range and, not surprisingly if his processing speed really is a personal weaker area, he did more poorly on the one timed piece of the PRI, block design, than he did on the other pieces of that index.
You may have already pulled it with the link above, but I am getting a GAI of 122 (93rd percentile), which really should be used given the lower processing speed and working memory indeces. Do you know if your son's school offers any GT programming in which he can participate or would he need a 95th percentile score to qualify?
My general gut feeling is that he is a very bright-mildly gifted child who would probably do well in enrichment/accelerated/GT classes but who probably wouldn't need major acceleration like a grade skip. Unless there is something else going on that you haven't mentioned, I also don't see anything in there to indicate a worry about twice exceptionality (gifted + Learning Disability).