Those 18s and 19s are very impressive. For the WIAT, they are wanting 145 on Total Reading or Total Math, right? So, he missed by 1 point on reading, correct? I'm not privy to their acceptance history, but based on things I've seen Dottie post, it sounds like there are kids with scores similar to your son's who have been accepted.

I would probably apply in your instance if you think the program would be of significant benefit to your son and if, when you look over the application, it looks like your son sounds good on paper (you've got good examples of his characteristics that make him more than just garden level gifted and a good reference/letter of support from someone.)