Quote Originally Posted by SoloNightlock View Post
I thougt so to untill i melded crit on my prototype midan headband of fending as a test. Arylias has the maximum of one stat you can meld in agiven peice of gear. Seems pretty random how its spread out to me.
If the rules on melding caps have not changed then you should be able to meld up to 19 Crit, 24 Det, or 24 Parry into the head piece.

Pretty much every piece of gear in FFXIV currently has 2 secondary stats. One is "high" and at the slot's stat cap for the item's ilevel, and the other is low and at about 70% of the slot's stat cap.