My understanding of scribe rule is that I will have to place the adjoing timber ontop of the piece it's being joined to and then plumb down. I'm doing the joinery in my barn and expect this to be cumbersome.

I'm not too concerned about the posts that face the outside but the ones that are completely inside.. I wonder how to do the ties most efficiently. Will I be able to make all of the ties all the same length with scribe rule?