Tuning & Tweaking
I've had a blued and a stainless Vaquero in .44 mag for years. They still have 'box stock' internals, but I had some cosmetic magic done externally - bevelled cylinders, steel ejector rod housing (on the blued model), modified hammer contours, bulls-eye ejectors. They look like Colts on steroids .....
Now my wife has a pair of NM Blackhawk .44 Spls. and I just ordered one in .45 LC. The local 'experts' have already bombarded me with the things I "need" to do to 'tune and tweak' them.
My attitude is: "If it ain't broke, don't fix it." In my experience, the more 'tweaking & tuning' a gun has been subjected to, the more likely it is to throw a shoe exactly when you don't want it - like in the middle of a CAS match.
Example - Marlin lever actions. They just get smoother with age and wearing in. The ones I've seen go off the rails were 'tuned & tweaked'. Same for repro '73s and other lever actions. I nearly gag when I handle a 'short stroke' with a hammer fall that might fail to crush a gnat. I like a bit of a 'snap' when I drop the hammer and I don't find the 'long stroke' a problem.