Designs like the H leave me scratching my head. Yeah, seems like a "good" idea to design a mech to be heat neutral on a running alpha, we know that's not always the case. Salvo patterns and bracket fire let you bring a lot more boom to the party and still keep the heat under control. Others like the Warhawk Tara, you hold back and save that big hit for good odds and hope the dice still like you on the shutdown roll. I'm not likely to make that play but I understand the thought process.
The Nova H, on the other hand, or say the Hunchie IIC 2, I can't quite wrap my head around. If you fire 9 of the 10 HMLs on that mech, you have a 42% chance of avoiding that shutdown. Yeah, you'll be down looking at -4 MP and +3 TH, but if you planned well, you can at least waddle to cover. But if you fire that 10th laser, barring Tac Ops Expanded Heat Rules, you WILL shut down. At that point, not only do you loose any ability to defend yourself, you also become an immobile target with that lovely -4 TH.