Yes! The Great Yamato neeeeds this. Nothing has frustrated me more in regards to building in this game then trying to make the Wave Motion Gun look the part... multiple small beams is such a cop out and adds greatly to the complexity and dead space between the beam modules. It also leaves the weapon feeling piddly as far as damage is concerned. A single beam can be made powerful enough, especially with B/B, but looks just pathetic, a single narrow beam coming out of a giant barrel... like a BB out of a bazooka... pthhhh.
+1 Vote for Fat Beams!