This shouldn't even be a question really... I mean, if you're approaching a set of buffs from their 6:00, you're just meat anyways.
You should do slashing attack patters from a High 10:00->2:00 aiming for cockpit and wing roots. This gives you the biggest cross section to shoot at, a lead shot so they fly into your bullets as opposed to away, and keeps you within a firing solution the least amount of time, and if done right, moving through their arcs faster than the guns can traverse.