Those are great scores! I wonder though if it's possible he might have some small vision issue? The reason I ask that is the combination of his relatively "low" scores (nothing is really low, just relative to each other) - Reading Composite, Processing Speed and PRI - *note* - that PRI is actually really high, but it's low relative to his Math Achievement subtests. Here's why I wonder about vision: there are subtests under both Processing Speed and PRI that can be impacted by vision issues - Symbol Search in particular under Processing Speed, and I can't remember which subtest at the moment under PRI, but I have a visually-challenged dd who had her vision issue discovered through dips in those two particular subtests. The vision issues for my dd impacted her reading achievement.

Anyway, just a thought that might be worth checking - look at the subtest scores under PRI and PSI and see if you see any large variations.

Best wishes,

polarbear