I don't believe the high delay bonus to be in game already or am I wrong? I have been trying to determine what weapons will be best towards the end of the timeline but there is a lot of disagreement amongst <Aftermath> on what will and will not be implemented. Some contend that they will not patch some of the last patches because its not classic in nature and was in anticipation of Lucilin.
http://www.tski.co.jp/baldio/patch/20000919.html
Low-Delay Weapons and Damage Bonus Changes:
In accordance with our announcement several weeks ago, two low-delay weapons can now only be equipped in the off-hand. Included in this change are the Mosscovered Twig and the Barbed Scale Whip. The delay on these weapons and the associated damage bonus to weapons in the primary hand made these weapons much too powerful for their availability and the risk associated with their acquisition.
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.
This may already be in game, I have no idea