Has the current school done any kind of speech and language eval? Again, yes with the standard CASTL testing, or equivalent, and also with something like the CSLI? The first being the answer these questions test that many gifties will still pass and the second being the skills inventory that the parents and teachers rate based on his actual actions. If Pud has aspergers this is where you will start to see the most common delay. It will become more noticable from year to year without intervention, and to a certain degree maybe even with intervention. My DD passed all the standard tests last year and still just makes the cut this year, but failed the CSLI by a good margin.
I would look into something like this before I went through an expensive redo of the WISC and WIAT. Just my two cents...
