Shooting double triggers

[Dean Romig]

One finger only. It's the only way that makes sense.
Generally your finger trips the forward trigger first because most birds flushed fly away from the shooter. If you miss with the first shot your trigger finger moves instinctively to the rear trigger (with the tighter pattern) for the more distant 'going away' shot.

It may sound like a difficult coordination of trigger finger position but it is the simplest thing in the world. About two or three rounds of skeet or sporting clays will get you there in a hurry. Learn to love double triggers.