rotational swings only have a piece of linear when striding. once the stride foot hits the ground, the swings become completely different.
rotational swings, at that point, then rotate around the center axis of the body, by the hips aggressively turning, bringing the shoulders, arms, and bat around with it. the front leg stiffens up, and the back leg breaks down into a L-shape, allowing the rear shoulder to dip and the back elbow to tuck, enabling the hitter to stay "inside the ball". with the back elbow going down and tucking in, the front elbow works its way up, matching the plane of the pitch.
rotational hitters don't swing down on the ball like most linear hitters. they swing level to the path of the ball, which is a slight uppercut.
for more info, go to
http://www.mikeepsteinhitting.comhis forums are excellent!