Everybody talking about scaling Cure off of VIT is still missing the fact that most of the contribution to Cure potency is off of the Magic Damage stat on the weapon. Have your WHM equip Bloodcry and see how useful their Cure is at 50. Trust me, it's not going to be impressive, and that's what a PLD would put out if they had the Dreadwyrm Blade, even if Cure scaled off of VIT for PLD.