When i looked at this weapon, i just lol'd. Just look at this:
Heavy Great Sword - 39 swing Great Sword - 37 swing
Heavy Great Sword - 22 thrust Great Sword - 26 thrust
Heavy Great Sword - 92 speed Great Sword - 93 speed
Heavy Great Sword - 14 difficulty Great Sword - 13 difficulty
Heavy Great Sword - 11701 cost Great Sword - cost 12363
HGS just screams: Balance me! Why? U have everything above.
I think best balance could be reducing cost to around 10k(+-500 gold)and increasing both thrust and swing by 3 points.