Tim - Think of how the layup is layered and how the Two Foots would've been created, either bringing them up from the lofting floor, ( I contend that such floors - brick pavers topped with a lime plaster - were much more common than is realized, scribe with a floor and without one, the increase / decrease in efficiency is multifold, read framers and bridgewrights ledgers and records of how fast they could punch out a frame and it drives home that there are shortcuts and tricks of the trade that are still lost to us ) or creating them on the extreme end pieces in the layup and snapping a line, to which you then bring the awl and the dividers or a race knife to create the mark. A row of girts is simply an obstacle to be avoided. I've seen enough of your work here on the forum to know you should be a scribe-o-centric shop, it just plain fits your approach to the work. I'd like to help with that.
Don - Arcade posts go into but one layup, there is no need for a two foot.
"We build too many walls and not enough bridges" - Isaac Newton