I've heard that instead of 90 light, get 72 ice and 48 light. This is because with 72 ice you get VERY high defense with tankability, don't raise all snow shield, just have the first book (or at least I would think so) and you get all the armor from the passive. When in light you lose 6% (18% to 12% on piercing) magic attk which isn't really important for you as a blader. You lose some parry, not enough to worry about, ice is more important than the parry. You lose some speed, which you could just typhoon up anyways. Also you do lose 8 meters in ghost walk, but 15 is enough, 23 is just plain overkill, I mean you are a tanker.
EDIT: Didn't read your post fully, but yes bladers "can't kill but can't be killed" you pretty much must be a tanker. Although if you want pure str damage, go heuksal or pacheon (you probably already know what these are
) with the same build I posted above.
