MCH is the worst job for someone with carpal tunnel. I don't use it much anymore because every time I played Copied Factory with it, I was left with severe hand pain and I don't even have carpal.

Mostly is due to having to mash buttons during heat charge phase because it has a timer to use the skill and due to bad ping the game sometimes won't register the buttons.

If only the devs would change heat blast to 5 stacks, it would work better.