Cope crown moulding is fast and accurate with a barrel grip jigsaw equiped with a coping foot and 244D blade. I also like to use a simple jig that holds the crown in the nested position like it will sit on the wall. This gives me a simple visual frame of reference on how to hold my jigsaw blade to ensure that I'm back cutting slightly. This allows the leading edge of the cope joint to fit tightly to the adjoining piece of crown. | Insider Carpentry