Originally Posted by Clay
What am I missing?

I would read the Iowa Acceleration Scale Manual: A Guide for Whole-Grade Acceleration

Here's a review of the book -
http://www.davidsongifted.org/db/Articles_id_10053.aspx

I believe they are in their 3rd edition, but I saw Amazon had it in the 2nd.

There is a chapter on early admission.

Best Wishes,
Grinity

Coaching available, at SchoolSuccessSolutions.com