I replaced the grips today and the new Hogues feel legions better than did the factory grips. Fills the hand better. Will shoot it this weekend and see how much of an improvement is made.
I also replaced the recoil spring with a new stock weight 15 lb from Wolff. What's weird is that the spring that came out was significantly weaker than the new spring. I mean the new one is really, really stiff --so much so, that I had some difficulty getting the guide rod mounted back onto the barrel. Is this a common finding with an old vs new spring? Should a worn-out factory spring feel that much weaker than its new replacement of the same weight? It felt like the new one was twice as stiff. I couldn't feel much difference racking that slide, however. Perhaps the one coming out was the wrong spring(?).
Lastly, my trigger isn't very smooth either, at least compared to my Sigs which are absolutely silky smooth. In SA mode, the 3913 trigger also makes a "click" sound with a sort of catching feel on the take-up. It's not significant but annoying.
Are these pistols usually a little rough in the trigger take up or does this one need attention? If so, how does one locate a Gen 3 S&W expert or do you just call around?
Thanks again to everyone for all of the help!