Originally Posted by
m3113n1a1
How is this so hard? Do you feel you could complete the extension safely? Do it.
Do you feel you'll be too fatigued? Don't do it.
That's solid logic...but kind of incomplete. Fatigue studies helped craft duty days from numerous examples that the idea of having solid duty times is due to the fact that you might be fatigued and not realize it. Or the idea that you may think you will be ok by the time you get to the end of the tunnel, only to find out you arent.