Scott:
None of the upper edge of the original sheer planking remained in a state such that I could preserve it, or even use it to determine the thickness dimension. Except in the peaks, I only replaced the top inch or so. Since the plan was to dab some epoxy on the rib tops, I also glued the planking tops at that time. The picture shows the Stb-Fwd repair, where the transition to full width planks, for the peaks, shows. I'll add tacks before I canvas. This is typical of all four quarters. The plan was to trim top sheer to fit the outwales, which I haven't done yet on the Stb side. I have trimmed the Prt side to what I think will be a good fit, with some space for the filled canvas. In my defense for the unauthentic repairs, when I got the boat, twenty-some years ago, I wasn't able to determine that I actually had a Morris. I still don't have a builder's plate.