User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-184.38.6.64-20120118032015/@comment-4411728-20120118205815

As for modified hitboxes, I would have to say they won't. Just take a look at the skyscraper lance from Tri. That was the tallest lance in the game, and the very tip of it, doesnt damage the monster cause of the fixed attack hit boxes of the weapons.