Someone commented about measuring the vacuum in terms of how it might lower the boiling point. I have figured out a way to measure the vacuum being seen in the atty under normal use. But there are a boat ton of variables like strength of draw, AFC setting, etc.I don't think iit is vacuum as much as airflow speed. Sure there is a small pressure differential, but it's the act of drawing and the airflow rate that matters most.
Not sure the view is worth the climb.