I just noticed something that experienced builders have probably known all along. If you build a box-type fuse on a standard side view (for example in the Wylam or Nieto drawings) then the fuse is actually going to be just a little short because the side view doesn't reflect the taper angle of the fuse. It's just basic geometry. On a small drawing this only amount to a couple of millimeters but at 1/6 scale and larger this could come to a centimeter or more difference. And of course a knock on effect could mean that a lot of other little details could also be off.

Do people actually take this into account? Or just say "what the hey!"