Originally Posted by
Harnis
all you have to do is pick up an 8 foot wood shaft and try holding it both ways. In underarm grip, you can thrust at low targets, high targets, under your shield, around your shield, over your shield, you can brace it under your armpit, you can parry other spears, you have greater reach since you can hold the spear closer to the butt.
With overarm you can.....thrust above your shield.....and there's pretty much only one thrust where you have good strength (at the opponent's chest)......you can't really thrust low at all. You can't parry really at all. You can't brace it under your arm. You have less reach (which was the whole point of using a spear) because you can't extend your arm fully with the thrust and you are holding the spear further away from the butt. Oh, there's one thing you CAN do really well in overarm grip........you can throw the spear.
Any pottery artwork always needs to be taken with a very large grain of salt. It's like looking at a movie poster from Rambo to try and judge how M60 machine guns were used. Artwork can be a great source, but it shouldn't be taken as 100% fact. Practical experimentation shows that overarm grip is really only useful if you want to throw your spear