Coming back to the Scat D,
Well if you guys like it then awesome

, I never said it was crap, I just remember it running quite hot.
I almost exclusively used it towards the later days of 0.4 and I tended to always blow my heatsinks at some point.
I ran around with my left side and right side lasers grouped up. It let me shoot around corners and generally manage heat pretty well. I tended to still alpha a bit during a brawl, especially
I did kill and maim a lot of mechs in that thing though and it was fun (and hard to get... my god look at the price).
I think the reason I tend to remember a firey death in it is because I was engaging for so long I ran out of coolant. You're right you can just tap coolant to keep the temperatures in check, but being a sniping lasermech my trips back to the hanger were few and far between. I think most of the time, I'd get caught without coolant when I needed to go nuts with my lasers.
It also comes back to your playing style. If you play it safe you can let the mech cool naturally between shots. I used to always close range a bit with opponents since I found at max ranges my lasers wouldn't register consistently (yes I can fail with lasers...)
I may need to go back to using it again... when I can afford it.