Just ignore the charm table, IMO. It's more for players who are crazy about gemming in the best possible skills at G-Rank level sets. Once you actually grasp what "Monster Hunter" actually is, it's a very rewarding experience. The community is pretty amazing as well - lots of people willing to help online with your quests and stuff. Such as I =)
I would have agreed with this, and did in fact tell my friend the same thing, but the new info that seems to imply that tables 12 and 16 have no Rustshards at all is a bit worrisome.