[EricH]

I think it's quite possible to build a launcher that will toss discs equally well when they're upside down as right side up, or near enough that there isn't a noticeable difference at the type of ranges you might see in this game. I've heard a human throw type called the "Hammer" or the "Tomahawk"; it goes from vertical to inverted in flight and stays inverted. It also travels a fair ways, if thrown correctly.