The HD800S is not my cup of tea at all for metal. I was in between headphones at one point and had only the HD800S while I was waiting on a different pair to ship. The HD800S was so incredibly fatiguing for metal.

If you already have the XS, I’d probably just stretch and get a LCD-3.

As a sweaty FPS gamer, I will say that the HD800S is a bit overrated. The improvement over other headphones is not massive.