I agree. If LBXs are meant to be the shotguns of the mech world, and provide a similar DPS at a lower RPS to standard autocannon, why not make the LBX-20 fire half as fast as the AC20? If we assume that there is some range R where a single LBX-20 shot spreads over the same torso areas as, and does similar damage to, an AC20 round shot at the same point (including splash damage), then a single LBX-20 round is doing more total damage. There should then be some range, say R/2, where the LBX-20 shot will hit only one torso component, doing significantly more damage in one shot. I'd say a 50% rate-of-fire decrease would be exactly what the doctor ordered, if DPS at range R stays the same for both weapon types.