Hi everyone, could you please tell me what causes this kind of weld on aluminum? I'm missing those nice, shiny 'stack of dimes' ripples, and everything looks pale and dusty.

​I cleaned the aluminum beforehand with acetone and a stainless steel brush. I also tried raising the AC balance above 40%, but it still looks like this. Just to mention, I'm a beginner, but this didn't happen to me before—it feels like the more I learn and read, the more lost I get with all the settings and parameters.

​Also, I just got a new bottle of argon, so is it possible there's an issue with the gas? The tungsten electrode is gold (lanthanated).