So if my 4 1/2 year old can read Magic Treehouse chapter books (actually, MTH study guides, which I think are slightly more difficult?) and miss about 1 word a page, he is probably going to test gifted, right? I don't see any indications that he is 2E in any way.

(This matters, because as long we can assume he'll test GT, we will enroll him at DD's school for K and 1. It won't be all that great for K and 1, but he'll automatically get into the gifted magnet that she now attends in grade 2. If we aren't sure he's gifted, then we need to look elsewhere, and soon.)

I know some kids read early and aren't necessarily gifted, or are borderline MG. He has to test at 130 to get into the magnet.