No matter what you weld with, be it stick, TIG, MIG ,O/A . You will find it difficult to lay down a good bead unless you are COMFORTABLE. I always weld sitting down if possible. Also resting the ball of your hand on the work piece allows you far better control of the TIG torch. Maintaining the arc length is critical to puddle control, and prevents the electrode touching the work piece, meaning an electrode regrind most times.
Even when I am running rods (stick welding) I will always rest my hand or arm on something so you only need to control your hand, not the whole arm. You learn to slide/reposition your hand whilst running a bead without stuffing it up.
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Rick Jones
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