After mastering this mech that I picked up as one of the events reward, this is the build that works the best for me. Nothing fancy or very original. You stagger the AC20 spud guns to avoid ghost heat. This does not add to your facetime since both spuds will hit the target before the lasers finished burning. The two LLs give you a bit of range option, but you really want to get into the AC20 optimal range. Unlike the other NSRs, in this -9P the cannons are torso mounted and close to the cockpit, so there are no convergence issues and they are easy to hit with. Sometimes the targets shake so much from the spud hits that this actually interferes with keeping the lasers on a single component... but it is so satisfying that it is worth it.