DesertMuleDeer,
Missed your question on single-trigger doubles. Have seen quite a few single triggers malfunction, but the gun that really drove me nuts was a 28-gauge over-under from a well-known Italian firm. I could shoot it very well, but sometimes it would refuse to fire the second barrel, and sending it back to the company didn't fix the problem, nor did turning it over to a very knowledgable local gunsmith. It finally drove me so nuts I sold the thing, and yes, I did reveal the problem.
I generally prefer double triggers on double guns, as they're the quickest way to actually choose which barrel to shoot, and aside from one trigger that needed its pull readjusted after a year of use, have never had any trouble with them. But I grew up with a 2-trigger double, so am used to 'em. Two triggers confuse some people!
