This video shows selecting cup size, walking the cup technique tips and clear arc shots so that you can learn to walk the cup if you are struggling
Video shows walking the cup on a 2" carbon steel socket weld in a tripod vise. Socket welds are not commonly taught in welding schools so hope this helps
This video shows TIG welding several different alloys. Carbon Steel, 4130, Stainless, and Aluminum. Arc Length is key
5F position means the axis of the round member runs horizontal.
This video shows technique and hand position to maintain a good mig gun angle
