In a similar, slightly related vein: what kind of force is needed for a front-hinged device to simply turn over an opponent rather than hurl them about? And how much would it weigh? I just think it'd be interesting to combine a weapon like that with something like an axe or vertical crusher so you could attack the baseplate of an opponent. Do tell me if (like most of my ideas) this is inefficient and/or a bit rubbish. =]