How does this fight take 15 minutes ?? We usually kill it way way faster...
Only way I can imagine this takes that long is when you don't dps the droids to 50% at the same time(when they take back the shield)
Both droids will take back their shields when at 50% health, and after a set amount of time they will place it back on the boss... so if you split dps on the droids and take them to 50% roughly the same time you will have the most dps time on the boss... we usually only need to do this twice before the boss is down...
* edit: yeah what the previous poster also said..lol... I should read better next time...