I think shutting down all FH is kind of lame, especially on Friday nights an hour or two before FSO when everyone that isn't a regular is practicing a bit before FSO.
Yesterday is probably the first time in a year I shut down all FH and a VH at a base, and I just did it as a vengeance sortie.
Most of the time I try to let the tankers do their tank battles (I used to fly A20s all the time and be an annoying bomb****), fighters do their furball stuff, and me do my stuff, because AH like all multiplayer games is chaos and anarchy.
Also, setting up a good air superiority, kill VH, kill all autos on base first, then vulch, is way way way easier to do than to get all FH, BH, and the VH at a base, especially the 2-mile base that is A22 on yesterday's map.