I was watching one of Marc Sommerfield videos and he use a Keller jig. But he used it in a way that he did not have to scribe the pin board. All he did was found the center of the tail board jig and the center of the board. Lined the two up and cut has tails. He also added a stop so he could make repeat cuts. Then when it came to the pin board he did the same thing. Only the way I see it he had to off set his pin board by either the width of the jig pin or the width of the dovetail bit. I tried it on my Keller but I can’t seem to get it just right. Any help. Hat