Good post, thanks for sharing! This seems like a very cost effective way to see if you're affected by SA.
Interesting observation about O2 levels while at altitude. IF there is a higher than normal incidence of SA in pilots, it would be an interesting study to see if a career of bouncing between sea level and 6000-8000' had any role in the disease.
Slightly off topic, I found this graphic that illustrates what a 40 BMI looks like. I hate the idea of a nanny state, but that kind of morbid obesity looks like a heart attack going somewhere to happen. I think we'd all prefer that it not happen at the controls.
