Which do you prefer: a 3-12" load with 2 oz of shot at 1300 fps or a 3-1/2" load with 2-1/4 oz of shot at 1150 fps? Is there a noticeable difference or not? I usually use #5 shot in my gun as it patterns better than #4. Any opinions will be appreciated. Just a note I won't fire at a Tom more than 40 yards away. My gun is a Remington 870 Super Mag Camo w/24" barrel.