I am all about getting it done right just not at the expense at buying delicate equipment that cant spend a day on a job without me without needing a cus service rep..I would love a vac guage that would last more than a week and to be able to stop using the old Johnson control digi vac guage that is the size of a vac pump......but hey that old dog works every day....reclaiming chillers upo to 300 tons is common and long periods of use for vacuum tools is very common...I will love the chance to use one that has durability built in. I will let ya know how it holds up in my particular position....