Throw in the recycled CGs and there is more questions or chance leading to coincidence.

What are the possibilities for referencing the bench mark, the top of the plate, the top of the tenon, the shoulder, and does it always have ti be 2'? As seen in another thread, there could be the possibility of it being at 4' and at the brace location?

Speaking from no experience in using the 2' mark, I can easily see myself using the 2' mark as a double use mark. Why not place the girt on the same point?

Tim