I asked this question from several people, some whom are in the know, I haven't gotten an educated answer yet, and doesn't seem to be any here either. It would seem a fairly simple question, right? What happens in Afghan is vesting different than what happens on de Island Mon, so forget that "winter" thing , , Freeze them, bake them, dance a mystic Hooula around them with your socks on fire, chants, , , what the fuck? Seems trial and error is the path to follow, not so Zen, but will bring us to a destination, sooner or later.