Normal Luk Versus Lukless; When do they surpass?

Even if the Regular Luk Mage has perfectly scrolled gear?

Well, a godly luk mage will outdamage a weak lukless. But like the other poster said, if their gear is on par, a lukless will always outdamage a normal luk mage at this time. There may be new content and equips released in the future that may change that, but for now lukless mages have a significant advantage.