butt welding exhaust system

Wow I wasn't criticizing any one and I am far from expert. Your right as purging for mild steel but stainless it is best way I have found. Basically everyone was discussing best way to butt weld pipe and I threw Tig into the mix. There is all kind of ways to join pipe from brazing or gas with coat hangers or stick mig Tig. Sorry if you got butt hurt cult. I don't need to try and impress anybody here. I am comfortable with my abilities.:finga: