I'll explain what I mean. It's safe to say that a level 80 character with 300 Mastery (both current RP caps) worked as hard as humanly (or elvenly etc) possibly to get to that point, earning an average of 3.75 points per level. So the most a level 10 character who's doing everything possible to get Mastery could get would be 37.5, 20/75, 50/187.5 and 80/300. So the lowest level a character could unlock Tier 2 would be 27?
/edit Disregard above, that makes more sense. Fair play.