It might serve him well in the short run, but maybe not in the long run.
Can you tell me more about this?
Now, this would be where ability (IQ) testing could come in handy. With achievement testing he can show what he knows. With ability testing you're more able to get a picture of how your DS learns. If he scores quite high, then you can be more confident that he learns at a faster pace and more deeply than most people and would likely continue to need a more challenging curriculum presented at a faster pace. If, however, ability testing shows that your DS tends more to the "bright" but not-gifted side of things, perhaps things would get harder for him in the long-term if he were to skip now.
(Of course, there are always many more things to consider other than testing, both in the short-term and in the long-run. But you probably know that! :))
