Thanks TxBigRed, I thought it would be similar to Oxy-Acetylene. As you know the manual that comes with the AHP alphatig has very little in it. I did notice a very large drop in reading when flow starts with this regulator. I guess I will be shopping for a real flow meter regulator. So since you hav...

I've got a question for the more experienced people here. I just received a new AHP 200DX tig welder. It has the cheaper gauge only argon regulator. When setting the flow, do you adjust the pressure with the gas valve open and gas flowing? Or adjust the pressure to what you want, without flow. I not...