I think getting rid of the stance penalties would do more than a simple potency change. Would be nice to you know, DPS in Sword Oath then actually be able to swap to Shield Oath for tank busters without A. Losing our combo, B. getting stuck on a GCD, and C. Losing 1/5 of our mp. I just don't see why PLD's have to suffer like that when every other stance job an flip through them on the fly.