Hate to bring up an old thread, but I dont agree with this statement and would like to see if i am right in my thoughts..
Quote:
AR + BF + dps trinket + KillingSpree
I dont think you should be popping AR prior to killing spree as that removes approx 2.5 sec off of your AR timer capping energy even worse since Killing Spree caps you on its own resulting in a dps loss from AR up time.
I personally use Killing spree separate from my BF and AR timer uses unless situation arises where the added AoE on killing spree is needed. Even then AR wouldnt be used till after or if its on CD. Also its great to span that final distance back to a boss (think Anub after adds).