Bob,
In the late 80's early 90's I shot in PPC competitions where you shoot just about every course of fire DA (1st course was 12 shots in 20 seconds at 7 yards - B27 target). Most competitors shot modified S&W Model 10's (1" dia bull barrel, full rib sights that you can preset the front for 7, 15, 25 and 50 yds, trigger jobs, etc., etc.). I started out with a stock 6" GP100. The next year I built a comp gun from a GP100 (this was when you could get good PPC barrels through Brownells). Everyone laughed and said you build a PPC gun from a Smith because of the smoothness of the action. I then let them shoot mine. I'm proud to say their tune changed 180 degrees and they were impressed on how good the Ruger felt and shot. Sadly, I don't have that gun any more. The USAF sent me to Egypt for a year with a special team and I sold it to a teammate. I would actually like to rebuild one of my GP's into a PPC gun at some point in time.
To this day, because of that competition and training, I shoot my DA revolvers DA probably 90+% of the time because I am so used to doing so. Keeping the correct sight picture while squeezing the trigger just takes a lot of practice.
I like semi autos, they have a purpose in life, but I love DA revolvers, with the emphasis definitely being on the Six series and GP's from Ruger.