I went with 8 because, as Drail noted above, like the .41 Magnum, the .44 Magnum with full power loads is just too hard for most folks to handle with excessive blast and recoil. I think the 6 shot capacity and weight is irrelevant, but I carry a 4 inch S&W Model 686-6 on duty. (Yes, I'm the dinosaur.) I used to carry a 4 inch S&W Model 629 loaded with mid-range magnum loads, and after I had elbow surgery, unrelated to the .44 Magnum, it became my wife's "house gun," loaded with .44 Special 200 grain Silvertips.
Back to Drail's comment, to be fair, Bill Jordan and Elmer Keith proposed a 200 grain lead SWC at 900 fps "police load" and a 210 grain JHP at 1300-1400 fps for the .41 Magnum. Remington, all wound up in "magnumitis," produced a 210 grain JHP at an advertised 1500 fps and a "police load" with a 210 grain SWC at 1150 fps. S&W just used their N frame instead of going to a smaller, lighter gun (think L frame +) to handle the smaller cartridge, so the guns were big and heavier than a .44 Magnum. Even at that, the 4 inch S&W Model 58 would have been a decent law enforcement sidearm with the original "police load" if it's introduction hadn't coincided with 1) pressure to hire more females as police officers and 2) the start of the move to semiautomatics by PDs. These and the development of reliably expanding JHPs in lesser calibers destroyed any chance of the .41 Magnum to be widely adopted for law enforcement use.
As a side note, my S&W 629 is long gone, and my wife now has my old 4 inch S&W Model 681 with Crimson Trace grips loaded with 125 grain SJHP Remington .38 Special +P ammunition. Off duty I carry a 3 inch S&W Model 13-3 and/or a 2 inch S&W Model 12-2 and always a S&W Model 642-2.