For a long time, I figured welding was all about perfect machine settings. Seeing that boiler fix change with just a torch angle shift totally flipped my view. It's like how a slight push or drag angle can make or break a weld's penetration. That small adjustment shows a deep understanding of the material and heat flow. It's not luck, it's knowing exactly what tiny change to make. Now I see it as more about feel and experience than just following a recipe.