Well done, good sir!
(and thus it begins...)
I go by what Chef Ramsay says, and I distinctly remember an episode of Hell's Kitchen where he was pretty adamant about how you might as well not eat a steak if it's cooked past medium on the count of the flavor being killed off. But whatever floats one's boat, I say. I'll cook up a piece of shoe leather for my Barbeque guests if they request it.