I personally found the most successful approach to attacking buffs is to climb out to the buffs high 2/10 oclock maintaining a 1.5 to 2k lead and a 1.5k altitude advantage. I then attack the cockpit area of the nearest drone while making sure all three axis's are constantly changing as to give the gunners a difficult target. A well placed burst of fire into the cockpit will kill anything, and the AC i usually up are not heavy hitters.