One other thing I wanted to point out. I don't know what difference this makes, but both myself and my instructor thought that the pO2 of 0.09 was VERY damn low and surprised I noticed it and responded.
We wondered if my running has anything to do with it - I run every day with my shortest distance being 4 miles (6:50 pace) and the longest being 9 miles (7:10 pace). I've run multiple marathons (the last one in 3:40), but run to stay in shape (not to be competitive).
I wonder what effect my cardio conditioning has as it applies to diving?
For example, when doing my original CCR training, we did a hypercapnia exercise to demonstrate what it felt like. It felt like the same thing that happens after mile 20 or so during a marathon and you pick up the pace - You just can't breathe (co2 retention), your heart-rate goes up, and you have trouble ambulating.
Makes me think I need to run more
