ahh, ok, I thought it went with when you could use each grade, just wasnt sure and didnt notice it in the skills.
no you are exactly right but NC completely left the logic train at A grade
as you can see crystalize A is at 60 and i assume that is because you get A grade mastery at 61 which is not a skill lvl
crystalize S is at 70 along with craft S because ncsoft are ******s ><
what should have happened was craft S (not S80) was a 74 skill and crystalize S is a 76 skill