Were the Shields you sold older models or Shield Plus guns with the the new trigger?
I was at a gun store a couple of days ago and also handled a 4 inch plus with the red dot. The trigger was a little better than the one on my Shield Plus but not the big improvement other posters here are reporting. The trigger on any Shield Plus is a big step up from the trigger on the older Shields.
The CT sight mounted on the 4 inch gun had a very dim dot and no way to adjust brightness. It might have been a battery issue or something with that particular sight but did not inspire a lot of confidence.
I was at the store because I was looking for an optics ready pistol to replace my 2.0 Compact and would rather buy a new gun than get the slide milled. I walked out with an optics ready 2.0 Compact with the flat faced trigger and tall iron sights. I took both the old and new guns to the range and shot the new one better, mostly due to the flat faced trigger. I plan to put a Holosun 507c on the new gun. By the time I am finished the cost will be $100 more than the PC 4 inch Shield Plus, due to the 507 being a better and more expensive sight and 2.0 Compacts being more expensive than a Shield Plus. But if you look at the total cost the PC Shield Plus is not that expensive for a pistol with an improved trigger and a RDS.
If you want a pistol with a red dot I would go ahead and get the PC model. Otherwise I don't think it is worth the money. If you do get it make sure the CT sight is working properly, all the supplied magazines drop free, etc. PC means more features and a better trigger, not better quality control. The Shield Plus I own came with a dead front night sight and 3 of the 5 magazines that came with the gun would not drop free. S&W replaced the defective parts but I check everything I can check when I buy an new S&W these days.
