What exactly is the advantage of a cruiser using single cannons instead of beam weapons (beam arrays, dual beam banks). It seems that the Damage Per Shot is much lower. Is the rate of fire for single cannons significantly higher? The game doesnt mention a rate of fire for non-torpedo weapons. I really like the look of the cannon fire, plus I figure that cannons have to be good for something (otherwise they wouldn't be in the game). Can someone explain the game mechanics differences between the different systems???