Not sure if this was posted yet but I don't see it. With the clan heavies running 89kph I've been feeling a greater need to get my IS mechs as close to that speed as I could. You get left behind and or flanked too easily going 70 or under for my tastes. The quicker peeking and torso twisting help the wall-shaped torso too. And no jams! Same build runs on the STD270 if you're comfortable being slow but want to be tougher. Could drop 1 ML for 70kph STD275. I run my groups: 1 - arm cannons 2 - RT cannon 3 - lasers (I hold shift)