I tackled the rudder first because it is smaller and I suspect not as critical to the boat's performance if I screw it up. Using Storer's handy-dandy foil-o-matic gauge, I hit the leading edge with my belt sander and 50-grit paper.
I worked at opposite ends, leaving the middle untouched for awhile. The middle was removed with a plane after I was comfortable with the shape of the ends.
I then proceeded to the trailing edge of the same face in the same manner.