Irachkom wrote:First time heard about that. Not sure thats possible, since there is NO SAME TIME. Anything happens at "same time".
Watch combat log... One attack for sure will be first than other... So, sure 99.99999% there is no any "4stacks"
There were, they didn't matter as you also got 2 charges sometimes so it evened out, attackspeeed buffs (and debuffs) were calculated in real time, not on a per attack basis.
Assume you have 2 weps with the same attackspeed and, as you said, they're calculated 1 at a time instead of at the same time
MH Hit
OH Crit - procs flurry, now both mh and oh will benefit from the flurry for their full attackduration since they hit essentially at the same time
MH hits again 2 charges left on flurry
OH hits again 1 charge left
MH hits 0 charges left
OH hits but since it's benefitted from the flurry all the way until the mh used the last charge you essentially got the 4th charge.
The problem raises when it's the mh that does the initial hit, since the oh will burn a charge almost instantly.