Nebraska,
thanks for posting your pics of the ghost ring rear sight! I just ordered one- seems like a possible godsend for older eyes that are having difficulty focusing both front and rear sights.
Here's another one- I recently bought a Ruger Super Blackhawk Bisley, .480 Ruger. This handgun is a real piece of work, and I like it very much. However, it came from the factory with a trigger pull harder than I like, and creepy to boot. I bought a Wolff trigger spring, which reduced the pull to a very nice 2.75#, but of course the creep was still there. I then stumbled upon an article by Jeff Quinn, entitled 'Poor Boy's Trigger Job', where he describes a procedure of applying upward pressure to the hammer while pulling the trigger. He calls it 'marrying the trigger', which supposedly helps to remove burrs, etc. and smooth out the trigger. You don't want to overdo this process, just a few reps and try to see if things are improving.
Well, I gave it a try, going thru 10 or so reps with the upward hammer pressure, and guess what- the creep in this trigger is now almost completely gone! I just saved myself $100 for a gunsmith trigger job.
Check out this site:
https://gunblast.com/Poorboy.htm