Originally Posted by David Armstrong
IME, the pistol stock reduces the overall usability of the fighting shotgun. It works well in a special tool role, but for general use the standard stock (properly fitted) is better.
I will agree with you in the case of Mossberg shotguns due to their tang safeties and slide release position.
However, in the case of the Remington 870, which is the gun the OP is asking about, I have to disagree. The safety becomes easier to use with a SF IV or SF IV-S stock especially if used with a Vang Comp BHS. I find every aspect of shooting a "fighting shotgun" easier with the IV-S than the conventional stock.
The only time I prefer a conventional shotgun stock on a 870 is for a trap/bird hunting gun.