I’ve seen a bunch of butchered trigger jobs in my time too...
“Well Cletus, if cutting one turn off the spring is good, two must be twice as good... and that notch there, let’s stone it round..”
If it’s done right it will be heavy enough to prevent unexpected bangs, but smooth enough to feel a great deal lighter. It’s a matter of very small changes. One of the best fighting revolvers I have is a Model 25 (N frame .45 ACP) that originally started as a bullseye target gun but was chopped to 4” and slicked up by Badger Sports around 1960. The pull is still around 9 pounds but smooth like ball bearings in oil. Add to that smoothed coke bottle stocks and it’s a wonderful thing.
Sorry about the double post, I’m certainly not trying to convince anyone my accumulated wisdom is worth looking at twice.