I am running a hypertherm 400xd autogas and have several quick connect torches that we are unsure if they are any good or if we should scrap them. Before scrapping them I wanted to ask if anyone had recommendations on potentially sending them out for testing or to be rebuilt? We bought a maintenenace kit but that pretty much just covers the o rings and the push fittings. any ideas? Does Hypertherm have a program where i could send them in for testing?