I too feel that it would be in the best interest for engineers to get out in the field to see how it installed. I use to work with an architect and to him, moving a wall over 2 feet meant nothing more than erasing a line on a plan. He never knew that in that wall was 15 cables, CATV wires, Telco lines, plumbing etc. Plus to relocate that wall it would be about 3 days worth of work and thousands of dollars. He also would try and cram every piece of mechanical equipment into the tiniest of rooms. Thank goodness for the workspace req. of the NEC.