So I sent in to MP tens that were not working for service . 2 pretty old ones actually. As always eco-tech called me as soon as the MPs arrived. They offered me an option to replace the damaged parts at a good price but they also offered to replace both MPs with new QD’s at a deeply discounted price( not the first time either). Every time I’ve ever sent anything in for service these guys they have always gone above and beyond. You’ve made a lifetime customer! Thanks ecotech.