I want to thank everyone for their comments. I am heading out for a month long trip on Monday with my D800. 2.5 weeks will be for picture taking and 1.5 for work . Been practicing the af-on tecnique for the last week. Hopefully have it under control. Still have a few questions, but hopefully with experience they will be answered. One though I am not sure of.
In Live View, does it work the same? Do I need to press the ad-on to focus?