Don't know if anyone else has attempted it yet. No vids on youtube showing how to do it like there is for a lot of guns.
Just wanted to give people an idea of some of the issues you get into if you do tear it down.
Right now there's not an "easy" source of parts (like MGW or Numrich and others) for parts you might lose/damage so you'd have to go to S&W to see if you could get them. A small bit of stoning/polishing shouldn't have a damage worry but you can't be sure till you get it totally apart, do the polishing and get it back together without losing something.
For about 30 seconds I thought about grabbing a grease tube (grease for the M1A/M1 Garands in my tool box) and putting some grease on those two parts to keep them on the outside of the sear housing. For about 30 seconds. Then the picture of the grease on my fingers, on/in the frame, on the towel and getting who knows where when I get up, move the chair, etc. stopped the idea of using grease.
Bad enough to be fighting the parts, worse to get grease on stuff in the kitchen. Didn't need my wife asking me why I made a bigger/dirtier mess.
I went through it afterwards to make sure the grip safety and thumb safeties worked like they were supposed to work.
