The revcall applies only to the 686-0. (just stamped 686). It's not a dangerous defect - the firing pin stop collar can dislodge and lock the cylinder, requiring gunsmith attention. The recall changed out the collar for one that can;t bind the cylinder. Such modified guns will have an "M" stamped next to the 686 model number on the cylinder crane.
My personal favorite 686 is the 686-3. After that, MIM parts were introduced on the 686-4 and the 686-5 brought in the hated frame-mounted firing pin that lessens the quality of the trigger pull and increases trigger weight for reliable ignition. Also sometime around the 686-5 production, the hated frame lock came into use - yuck.
The pre-686-3 guns are also very nice, but the -3 model was the pinnacle of the design.
I've had dozens of S&W revolvers over the years. all are gone now except my 6" 686-3 factory target model. I saw no reason to keep the others as this gun made al the range trips while the others just sat.
The only .357 Mag I like better than the 686-3 is the 27-2. Man I wish I still had a nice 27-2... but the 686 is much more of a beater cuz I'm not scared to put her through the paces, while the 27-2 is a collectable now.
