Civil 3D Coordinate Conversions

I came across a post from Civil3D.com that references an article dealing with coordinate conversions an Civil 3D. The article was originally written by Edward-James Surveying, Inc. for 2008 but has been recently updated for 2010. If any of you have struggled with this option in Civil 3D as much as I have then you should enjoy the article. And please if you are struggling with this please let AutoDesk know so they will make fixing this a priority.