I like that build. Looks really competitive. And I love pulse lasers, but I modified it a little to allow it to have AMS. King Crabs are so vulnerable to missiles. _
_ That laser AMS will generate a lot of heat. I think I'd go to a regular AMS. Depending on how hot it all was, MLs might be better over ERMLs, but that's going to be a to taste thing. You're right about the need for AMS though. I love bringing an AMS.
I usually consider Laser AMS on a build that doesn't already have a lot of lasers, then regular AMS on energy builds. That said, I haven't run quad UAC5's before. Maybe they're really hot. I think laser AMS is generally superior, because it shoots through walls etc in all directions. When we all get those special mechs for the MW5 pre-order, it'll be my first King Crab.