
Out of interest, what size tungsten did you use, how many Amps and how many L/Min, did you use for that? I presume the red 2% Thoriated tungstens were used - or something else?
........and while I'm picking your brains, do you bother with balling, or blunting your tips for ally?
The reason I ask is that I treated myself to a AC/DC Tig for xmas
I've been making a trackday baffle on the 1125 for my Tubbs pipe and have got the gas flow down to about 6 L/Min to keep the arc stable, but find some blackening in the beads - from oxidisation I presume

If your dreams don't scare you, they are not big enough.