Wet sand 2000-2500 on flats and cylinder to knock down the semi polished bead blast finish. Then hand polish for days with mother mag polish as not to roll any edges or knock logos down.
The trigger, hammer, and cylinder release I used fine stone on die grinder and knocked all the rough down. Then fine sanding drum. Then wet sand at 220, 320, 400, 600, 1500, 2000, then hand polish for hours.
Scribed off and only polished the spots that showed through the frame. The internals were all stoned and inside frame stoned. Knock all high spots down so parts glide across each other.
Trigger job, years of practice but quick tip I used on this. Take permanent marker and color everything on sear engagements and parts rubbing. Then install, dry fire, check all interference where marker rubbed off. Stone high spots and debur very lightly.
Put a slight radius on single action part of sear to keep neutral engagement and allow a slight rolling break. I’ll give average of ten trigger pulls weight once I get friends Lyman digital gauge. Single action feels around 3lbs nice and safe since this is my CCW.