I saw David do something on a recent show that seems real trivial until I realized that I didn't do it. He was bringing a line around a rectangular piece of stock using a tri-square to transfer tyhe line from one surface to the next. Rather than trying to line up the tri-square edge on the edge he was transferring, he put his pencil point on the line, then slid his tri-square to that point. Yeah, I know it's trivial but I've done that transferring around a rectangle many times and usually wind up on the
4th side 1/16 or greater than where I started. Using his method, It his right on the money.For what it's worth.---> Ed