Justin, I just talked to Jack from the factory. They stand behind their machines 110%. I am so friggin thrilled with the attitude of this company. If it isn't right, they will make it right, no matter what. Customer service is a HUGE deal to them. I have zero doubts now about getting two of the M-20's into my studio. The smaller volume units have a limited life in the lampwork world I'm afraid. I can't contain my excitement! From a boro workers perspective, this is awesome news!!! Unlimited oxygen, affordably priced and at the presures / volumes lampworkers need to get the most out of their torch. Who could ask for more?