Since busters were completely useless as soon as you got a few chips, we've decided to give them a slight buff.
The new damage for busters is as follows.
Normal: (Attack x Rapid) + 5
Charge: (Attack x Charge x 4) + 20
Basically, we addded a static +5 to normal and +20 to charge.
Have at it, and good luck blowing stuff to hell.