His problem with focus mainly (90%) comes from doing basic math problems verbally or written. He is a fast reader and always completes that stuff quickly. He can work for 12 hours straight on a Lego kit only stopping for restroom and food so I am inclined to think it is not ADD given he can focus if he wants. I wonder if all the drill of kumon numbed his brain to basic math? Trying to stay positive but hard when you feel his gifts aren't even being close to being used.