Rotary Slot Position Versus Linear Hitting Mechanics

Many years ago I had the opportunity to be around Pete Caliendo, a baseball hitting instructor from Chicago that worked with Charlie Lau before he died, and he said Charlie often said most people never really understood the mechanics of his method of hitting...which was a combination of rotation and linear mechanics. Did Charlie Lau help develop .300 hitters? Yes, he certainly did, but it wasn't from mechanics. Charlie's success for helping hitters improve and excel came from helping them focus on the mental and visual aspect of hitting...not just the physical... even though he worked their tails off. Along with emphasizing consistent contact, he employed Dr. Harrison's fine centering and soft centering visual training religiously and with great results. In my opinion the improved focus and visual training that Lau used were the real reason for his success and not so much resulting from his mechanics. He INSPIRED many to become good hitters.
So, which hitting method works better? Which of the two reduces rotary inertia and increases hip rotation in the process?

Rotation...therefore the rotational slot position really adds power from the lower body and linear doesn't.
The positional slot system really simplifies hitting as well, and that's the beauty of it. Mix in Dr. Harrison's vision training with the proper mental training along the hard work and inspiration required to be a .300 hitter, and you'll succeed. One conclusion you can draw though from linear hitting was that Charle Lau was a master at inspiring hitters and getting them to focus on hitting. I hope to be half as good as he was...one day.