There were many differences between expert pilots and ace pilots.
From transforming their rudimentary resonance shields into proper Saint Kingdoms to unlocking the growth of their resonance strength to a much greater height, any expert pilot practically underwent a comprehensive rebirth and evolution from the moment they triggered a second apotheosis.
When Dise Larkinson finally attained her sainthood, what stood out the most to her was that she gained enormous improvement in her ability to sense, understand, reinforce and sharpen the metal under her control.
She was able to take immediate advantage of her newfound sense of metal to gain a far better grasp of what the First Sword and the Decapitator were capable of under normal circumstances.
Saint Dise then proceeded to infuse them with metal E energy drawn from the ambient environment to strengthen them far beyond what was normally possible with hyper technology!