Actually, I had no problems with the course materials, just in doing them the GUE way. I've taken other classes and am very comfortable with it, as well as reading books like Mark Powell's Deco for Divers.
I wrote a spreadsheet in my phone for gas matching and management, tank factors, etc., when I was on an AN/DP surface interval.
I wrote a spreadsheet in my phone for gas matching and management, tank factors, etc., when I was on an AN/DP surface interval.