Problem with mage robes comparing to chestpiece + helm stats

[Zefie_M]

IMO its not possible
comparing need to be between equal number of item, so its not possible to compare 1 item to 2 items

though it usually goes like this
basic defensive stats robes > body + head
additional stats (like INT, MND, ETC) body + head > robes

WoW can do it, so its not impossible. Difficult perhaps, but not impossible.