Saw a MechWarrior with a similar build, thought I'd post mine that I'm trying out: I find that I can fire three groups of 2 without overheating, 4 if I give them a split second to cool in between. Still gets to hop around real good with 3 JJets and lots of armor. Comparing this to my past 2xHLL and UAC/20 build; let me know what you guys think.