I'm unfamiliar with the word datum, could you explain?
the posts are eastern cedar, from our own forest, and yes with ample flair for the teazle tenon. We are using snaplines for layout.
we have already laid out and cut the dovetails into the plates, so I spose we'll stay with the dovetail version, though really there is nothing stopping us from straightening out the cuts and screwing in a cog. I assume the clasp happens outside the plates?
thanks for the reply, Will.