[threadjack]
RE the M14:
Back in basic, I was issued a "trainer rifle" (M16A2 w/o any kind of FCG made by the legendary arms giant known as Olympic Arms). I distinctly remember hearing some of my wingmen in both mine and my brother flight bitching about how heavy the rifles were. Then in the same breath they'd say that they wanted M14s because "they at least got smackdown power". Of course these were also the same guys who deliberately put Icy-Hot on their own balls...
[/threadjack]
I just can't help but think that if bullpups were such great weapons, that weapons like the M16/M4, G36, SIG 55X series, etc, would have been replaced en masse long ago. Since that hasn't happened, I would call that a clue.