You are correct on setting the amperage, keep in mind the high side when you are just starting the bead is much higher than the high side mid bead. I run hot so I always set WFO on the pedal at just under out of control. Remember when TIG welding you can cool the puddle instantly with some rod. Once you get the hang of foot control you will never go back! It is like EFI! Hah! Good luck Frank!