After 35 years of carrying a sidearm, I insist on thin and lightweight.
I carried a Charter Arms .357 mag 'PUG' 5 shot, for 12 years for off duty and loved it at 21 oz. with the bobbed hammer. It eventually wore out as I fired it often.
Recently, I found CA makes an 'On Duty' snubbie with a shrouded hammer, Alum frame & SS, at 12 oz.
I love it with 38 +P. Revolvers always go 'BOOM'.
The 45 Colt/.410 Judge & Publc Defenders, even in the so called 'Ultra-Light' models, would be like carrying a brick, for me.
Self defense range maxes out at about 12 ft in real life, so I'm good with less-than-a-cannon.
If I only had a 2 lb+ sidearm, I'd leave it home... a lot.