Re: First time working a trigger myself.
Most all of my firearms get disassembled and inspected after running a couple hundred rounds through. I see where parts are rubbing against one another hard enough to leave swipe marks and lap them. I chamfer all the holes where pins pass through and use a Dremel with a felt bob and jeweler's rouge to polish pins and the stoned surfaces to a mirror finish. (I leave factory hammer/sear engagements ALONE!) Everything gets a thorough scrubbing in hot water with some Dawn and an old toothbrush. After blowing the parts dry I buff Tetra grease into them then reassemble.
Most actions smooth up dramatically and trigger pulls lose any grittiness or hitches. The reduced friction also means that lighter hammer springs can be used without compromising reliable function. Using this technique, I now have a Ruger Bisley Vaquero 45 Colt with a 12 ounce trigger that is as mechanically safe as the day it left the factory.
Sleepymonkey, you might consider getting some Wolff springs for that puppy and see if you can get the weight down a little further.
