Your choice. If not required by the chosen components, all you do is pump more oil which wastes HP and heats the oil. Your results may differ, but I go by experience.
So you have tested this theory? You think rockers grabbing the shaft doesn’t eat horsepower? You think the cam getting driven into the cam bearings doesn’t eat horsepower? You haven’t tested anything. And you are wrong. Because it can happen, it does happen and it should never happen.
