does the tig have down ramp control? that can help the crappy end you get on your run
loads of tigs have diffrent settings and knobs understanding what thay do realy helps
id be using a 2.4mm tungsen very pointed, 1.6 filler, around 50amps dc and 25 crator/base if you have it, pulse off if you have it, hf start on if you have it
1 sec pre gas
2 sec post gas
keep the torch travel constent with around 1.5 mm gap and dip/drag the filler onto the edge of the shiny pool to cool it keeping the bead uniform in with
as the work pice heats up you just go a bit quicker
not as easy as it sounds
a steady hand makes light work in the tig world
i realy miss tig welding