http://www.tski.co.jp/baldio/patch/20000919.html
In addition, two-handed weapons have had their damage-bonus modified. The damage-bonus for low-delay two-handed weapons (27 or below) created a problem similar to the weapons above and has been reduced. The damage-bonus has not changed for normal-delay (28-39) two-handed weapons. The damage bonus for high-delay two-handed weapons (40+) has been increased.