Laminar, I also do this on shallow dives from time to time ( when I remmber to

). I also do it while sitting behind my comp at work, dont you find though that if you do it for a few seconds and really force it ( on dry land that is ) that you get the urge to yawn? Other than the urge to be in the water of coarse

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Dive safe and shoot straight
- Hénré -
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"Thinking is the hardest work there is, which is probably why so few engage in it"
- Henry Ford -