If you draw a frame or geometery shape and use the pocket option, Select the geometery that is the outer shape of the surface to cut will allow it to confine the pocket to this shape, Select the entire solid with a small step over like .003" and climb cut it will cut the surface in a spiraling climb cut in an outward motion never leaving the surface of the mold. But this is only sometimes. Other times it will crash. When it works right it is the best surface cut I get. Wish it did it like MasterCam, everytime.