What about critting? If i hit with an MBA using a long sword and crit, the damage would be 8+str (max damage)... if i decided to use a power strike upon hitting with that crit, adding an extra 1[w], am i able to then max out that dice roll aswell? Making it 8+8+str? Or do i roll it seperatly as you would with a sneak attack damage (1d8+8+str)?