Suggestion 1: If you have a router and router table, run all of the stringers and gunwale surfaces that will be touching cloth though a round over bit before assembly.
Suggestion 2: When making the "recesses" for lashing on the keel (and bottom stringers if you're building a Short/Long Shot), don't get overzealous with the rasp. I didn't *think* I was cutting too deep; however, when I pulled the boat off the strongback, I saw that the indentations in the [soft] cedar were at some points deeper and sharper than I would have liked. (And would likely have created "wear points" for the cloth...) To make the necessary repairs, I cut about 18 - 20 bottom lashings, added some epoxy filler to a couple of the "too deep" indentations, sanded all of the indentations smooth[er] and re-lashed the joints.
Suggestion 3: If you are a first time builder, building a Short/Long Shot, go ahead and purchase TWO spools of sinew...
Happy building,
Byron