I am going to order a Veritas shoulder plane from Lee Valley. I will probably use it mostly to pare tenon shoulders and faces. I'm in a struggling with which size to order, the large with an inch and a quarter iron, or the medium with an eleven sixteens iron. The only advantage I can see in the medium plane is its ability to plane the bottom of a 3/4 inch dado. I usually clean up dados with my routor plane. Any advice from those out there that use these? Bob