User blog comment:Lord Loss/Monster Hunter Frontier G 2 Discussion/@comment-4979838-20130719135432/@comment-4009941-20130719184332

Oh to explain the sharpness G-weapons upgrade by levels like LV1-30 so far I think and by LV10 or something close depending on weapon it gaims more sharpness and you could say it gains like10-20 attack power or more per level so we don't know its maxed sharpness yet or its full attack power!. Oh and each level still takes mats to upgrade and at some points 2% HC carves and stuff from other monsters.

Hope that explains.