Logan Morrison was on a podcast where he said even at the AAA level hitters know what pitch is coming 85% of the time. He went down the list of what he looks for. Glove position, wrist angle, arm angle, they slow their bodies down on off speed. It's almost impossible not to tip pitches. The idea is to command it so even if they know what's coming they still can't hit it. Cease isn't there yet.