If it ain't broke, don't fix it!!
IMO: You will do more harm to a S&W detail stripping it annually then if you never ever detail stripped it.
I just cleaned a Colt Commando and a S&W Victory model last year that had never been opened up since they were made in 1941-42.
Thats 70 years!
Guess what?
Except for dried oil, there was nothing inside them to clean out!
They are not really intended to be taken apart unless they stop working when something breaks.
Take the front sideplace screw out and slip the crane & cylinder foreward off the frame for cylinder cleaning.
DO NOT take the cylinder assemble apart.
Blow it out with compressed air occasionally.
Then put a drop of gun oil in the hammer, trigger, hand, bolt slots, and ejector rod.
Work the action and wipe it down.
Constent detail stripping will wear and loosen the tightly fitted side-plate joint over time.
rc