After many years of double triggers I shot a single selective trigger for a few years. The transition back to double triggers, which I now prefer, was painfully slow, and full of bobbled shooting opportunities.
That right there is an honest post, and more in line with my experience. I have but a single single trigger gun, an O/U Beretta, the single trigger allows for use in severe cold, but, when I was younger, I did that duty with a double trigger.
Having two roosters, or, two grouse, blast out from near your feet can and will screw with your recollection of what gun and trigger you are using.
Barrel selectors seem to cause more problems than they solve.
Thats my story.
Enjoy your guns.
Best,
Ted