I just came back from our trap league. 32 participants and zero butt cuffs or slings. It actually does have everything to do with balance. It is amazing how different a gun handles shooting at running or flying game or hunting offhand when using a butt heavy gun. Even carrying afield is different. I once owned a stunning first year production 1899 Savage deluxe 250/3000. Off a bench it shot under 1" with iron sight. The barrel was very thin and the butt very heavy. I missed nearly every game animal I shot at with this rifle including an elk at close range. Totally off balance. It carried afield as poorly as it shot. On the reverse I had a Winchester model 54 with a standard weight 24" barrel and it was a dream to shoot offhand. Shot a number of running jackrabbits a few flying birds along with elk, deer and even a buffalo all offhand with it over the decades. It pointed like a finger and settled down instantly. A 94 Winchester has a natural balance point just ahead of the lever. This changes with added butt weight. Shooting targets offhand with either handgun or rifle, a muzzle heavy gun is the key to better scores. Often target guns have added barrel weights. Has zero to do with someone needing more gym time. It all boils down to what the owner wants to do with the rifle. Carry it to a tree stand and have a nice solid rest then a sling and butt cuff works fine. Jump shoot an elk running through the timber then those added accessories are often a liability. I have plenty of hunting rifles with slings, but I always considered lightweight carbines to be an entirely different breed and reserved for woods wanderings and the "always there" gun, while my hunting rifles sleep in a safe. After 60 years of hunting, I don't recall any big game animal that was shot at 6 times that hung around while the shooter reloaded.