Two things, Marv. One was that I had tried about every other setting, and two was that somewhere I read that 3D contour is more of or a better finishing toolpath than 2D contour. I have only used 3D contour a couple of times but have used 2D contour a thousand times. So there must be something different in the algorithm driving the toolpath and I don't know that I'll find out what that is but it sure made a difference.

David