Here's my 2 cents worth, I'm a long time cowboy action shooter, about half of my CAS shooting has been with cap & ball revolvers and BP cartridge rifles, I've owned 1858 Remington's, 1851 and 1860 open top Colts, my S/A Colt cartridge revolvers are Uberti made.
I had an 1851 second gen. Colt that I bought new and never fired it, my middle son has been into civil war reenacting for about 20 years so I gave it to him.
The two Cap & Ball revolvers that I have now are my favorites, they are two Colt 1860 Pietta revolvers, they are going on 30 years old, have thousands of loads through them and are still shooting as good as new, the only trouble I ever had with them is that I lost one barrel wedge, that's it.
I did a dehorning job on it and slicked down the trigger on them when I bought them, they were both shooting high at 25 yds. when I bought them so I filed the sight notch in the hammer a bit deeper so that they both shoot at point of aim.
I've read a bunch of "reviews" that praise Uberti's and badmouth Pietta's, IMHO they are just biased in favor of Uberti, my Uberti's weren't any better or worse than my Pietta Cap & Ball revolvers, however, my Pietta's were easier on my wallet when I purchased them.