I happen to like S by S's myself, but look them both over and decide for your self.
As for the triggers, i don't consider the double triggers to be there for a "fast second shot", to me there BEST use is because you have a different trigger for each choke!!!!. The way i use double triggers, is if a bird comes up close, i use the open choke bbl., if it comes up further out, i use the closed choke bbl.!!
It comes natural for me, as i learned to do this as a kid. With practise, anyone can learn to do this!
Drilling Man