Thanks for your input performance! What do you mean by "stand off?" Is there a fast-stable way to have your pipe setup when back-purge welding stainless steel pipe? (Do you rest your forearms on the table? How is your ground clamp implemented?) Lastly, are there any cups better than the Everlast #7 ones you recommend for this SS pipe tig welding?

Here is my "from da hood" back-purging setup that I measured with the flow meter to make sure flow was accurate: