Okay, latest update: I took the trigger assembly out, removed the hammers, and cleaned/ polished the face with a dremel abrasive buff and then a felt wheel. Did the same to the sear (although i could only fit the felt polishing tip in the window to get to the sear face). Then I oiled everything and put it all back together.

New trigger pull: 5.3 on the top barrel, 4.9 on the bottom.

Feeling pretty good about that.