The following link will take you to the revised 1DX AF Guide Book:
http://www.learn.usa.canon.com/resources/articles/2012/1dx_guidebook.shtml
Lots of good stuff per the firmware 2.0.3 update! PDF to download the guide is at the bottom of the page.
http://www.learn.usa.canon.com/resources/articles/2012/1dx_guidebook.shtml
Lots of good stuff per the firmware 2.0.3 update! PDF to download the guide is at the bottom of the page.