Overall, he has a nice, solid, profile, with a couple of notable differences:
1. His processing speed is substantially lower than the other areas, especially in the subtests that use fine-motor and visual discrimination. This usually has implications for written language (handwriting, spelling, length and complexity of written responses) and overall speed when completing paper-and-pencil tasks. Are any of these concerns? If so, this may suggest a possible learning disability. I notice that you mention emphasizing reading and writing over the summer.
2. He has a good working memory, which is greatly to his advantage in school, especially in math. Between this and possible relative weaknesses in processing speed, this may contribute to his preference for math over reading.
3. I am assuming the achievement tests to which you refer are group standardized tests, such as the SAT/10? These kinds of tests tend to have rather low ceilings (about two grade levels above), so it's difficult to extrapolate too much from the results, other than that he is a bright young man with a good store of general knowledge (which you already knew).
