Correcting a Plywood Butt Strap
I used a Japanese handsaw to correct one of my blunders: an epoxy-bonded plywood butt strap that was 9mm too wide and left no room for the bottom of a bulkhead.
And that’s why you need a Japanese handsaw to build a Polynesian boat... to correct your blunders In this case - we epoxied plywood butt strap with a wrong width, same like on other joints- but in this case it should be 9mm shorter to make space for a bottom of a bulkhead....