Quote Originally Posted by honedright View Post
There is no lateral movement, no forward nor backward side to side plane of movement. The angle of the blade does all the work.

Scott
Wrong.
By inserting an angle, you create lateral movement. If you look at it from the razor's point of view: For every mm down, you go 0.x mm sideways.
Ergo there is lateral movement. You don't perceive it because it is hidden by the fact that you move in a straight line, but the edge itself goes partially sideways.