User blog comment:Lord Loss/Monster Hunter Frontier G 3 Discussion/@comment-24148207-20131115082807/@comment-4009941-20131115111716

You can allways change weapons thats just for what weapon you start with for some reason they have that.

As for Skill Rank its like ranking per weapon with new moves and new HC revamped monsters with some surprising attack power and moves. Skill Rank starts at HR500.