Light Armor Mastery
When equipped with light armor, P. Def. +11.8, Casting Spd. +88%, Atk. Spd. +25%, and MP Recovery Bonus +20%.
Robe Mastery
When equipped with a Robe, P. Def. +14.5, Max HP +50.
By the above skills description, is better to use set light, the casting speed bonus is high and atk.speed too, does anyone tell me if my thinking is correct?