Well, I emailed Tom Dankowski and told him I was getting ready to order one and asked how to send to him for calibration. "Wait" he says. "I just happen to have a brand new unit here for sale". Well hells bells. So I go ahead and send him the funds via pay pal. He emails me back and says he will calibrate and certify the machine and send it on its way. 3 days later the fed ex man arrives. Hurray!! New machine Is here. Can't wait to try her out this weekend.