Robb is basically correct. On a carry/self-defense weapon, this additional safety makes perfect sense. If you want a competiton/race gun, then you may shave a few ounces off the pull. Hardly worth the savings on a carry gun.
Keep these extra internal parts clean and lubed (like you should be doing anyway) and the extra "series 80" parts will not be a hinderance.
Keep these extra internal parts clean and lubed (like you should be doing anyway) and the extra "series 80" parts will not be a hinderance.