Luke's tactics

[Barrett]

I want to start a separate thread apart from the previous one about The Luke Movie, etc.
What is really known about Luke's tactics? More specifically, how did his balloon-busting missions fit into the 27th Aero's operations and the 1st PG generally? (sorry, Billy; I don't have "September Rampage" here.)
A quick scan of Luke's balloon kills shows they occurred from 0600 to 1900 (6 am to 7 pm) or thereabouts, with 11 of the 15 occurring from 1600 onward. Presumably he preferred to attack out of the west with the setting sun at his back.
However, were these mostly volunteer sorties or were they assigned by the squadron or group? I assume that specific balloon busts originated with the infantry division receiving unwelcome attention from German arty, but the chronology of Luke's balloon kills seems to indicate that he kept to his own schedule.
Furthermore, the fact that Luke/Wehner/et al practically never had proper top cover (a 4-plane flight would seem appropriate), leaving one wingman to tackle X number of Albatrii/Fokkers shows a lack of co-ordination and planning at the unit level. What was Capt. Grant's approach, and how did it square with group cdr. Hartney's philosophy?
Lots of questions, not many answers--yet.