We have run into many instances where the brace hole did not penetrate thru the beam. I am always pleased to find them all the way thru and sdjust my dis-assebly time accordingly. Removing a purlin or tying girt as there also known when it has been "blind pegged" is a real pain in the. When you have a whole building worth of parts laying in front of you identifcation of parts is a no brainer. With everything laid out from a common face is just logical , the evolution of framing at its best. The way these connection work with the siding make for an incredably strong wall systems.