LOL, I've been driving *myself* nutty for the last few weeks, so you're in good company.
I agree that you're right; it can be hard to distinguished between MG and PG kids based on work samples alone when the child in question is so young. I think your Transformers book is right now. Now if my B were doing something like that ... I *can* sit him down and have him explain every *single* Mario level in excruciating detail, including the name of the level, the bad guys in it, what you have to do to beat it, how many lives you'll need, etc., etc. ... somehow, I don't think that's quite what they're looking for!
However, a handwritten Transformers book would fit that bill, I'd think. And video too -- get some video if you can. I bet that would be huge if you go with the portfolio route.
YES, include the 3-digit addition in his head. And it asks for a minimum of three pieces, right? Can you include more? If so, you could include those three that seem *most* what they're looking for -- and then a bunch of other stuff that seems relevent. And the application questions could help; I got a bunch of info in on our app that I wouldn't have been able to by working it into the answers. No, he wasn't super early with the reading milestones -- but he progressed ridiculously rapidly, which I was able to cover in the answers section.
I'll leave you alone now -- don't drive yourself crazy! I find if I spend too much time on gifted boards I start to lose my mind. Don't worry -- at least *I* don't think you're crazy, if it helps.
