I've completely sacrificed depth for advancing so far. Why? Because I'm in a Common Core district, and the virtual school - our best option for many other reasons - does standards-based assessments.

However, we just did formal 3-grade skip today. So he has access to middle and high school classes which are more in depth on a single subject. Now I can flip to depth with no need for acclereation. (I hope! I tell myself!). LOL

It's pretty hard to get depth without acceleration in math in K-8?