I am trying to mill out a rectangular slot with SW CAM. I would like to be able to save some movement/operation time by using a Rough Mill to finish the slot. I did not think that that was possible but wanted to see what others thought. 

I have a rough mill followed by a contour mill to get the slot done, but when the system goes from rough to contour there is wasted movement where it ends the rough raises up, goes back toward the center of the slot and then goes into finishing. I want to take out that wasted movement. Any ideas?