I could be off base but I'm guessing that kids with CAPD would have trouble with early reading with phonics...wouldn't they mix up words like bad and dab? Of course gifted kids can probably compensate for this better than most (perhaps covering up the problem), but I'm thinking that the super early readers probably do not have CAPD unless they are reading by the whole-word sight method.

We have tried noise-cancelling headphones with DD, or headphones with music, and she rips them off saying she can't stand it. It's almost like she's seeking out stimuli. One the one hand it causes her to lose focus, but on the other hand she's seeking it out. She has pretty obvious ADHD because of the impulsivity/hyperactivity as well as inattentiveness.