I think they might be double striking on ability crits. I saw a player hit me with a 6k beam overload from a dual beam array, and then there was a second 6k hit right after that was titled as a standard beam array attack. I'm not sure they meant one ability from one item to 12k strike (or worse, that was on my cruiser loaded with resistances).
i used dual beams since the start and in PVP they don't do that much damage, if they did i think i'd be winning most of my games except for 1 out of every 20 i play!