I'm actually the opposite. I think Overheating should be more punishing due to the fact that it would actually warp the metal if it's that hot. Give the "Heated " range a passive damage buff, and make it so shots generate 10-15 heat per bullet while heated. Voila, MCH is fixed. Right now I just use BS to get back to 50 heat if my last WF cooldown drops me below that threshold.