It is all a mental issue, shooting targets of any type. Stumping allows you to focus on one thing and if you miss slightly, your mind excuses the miss as "close enough". Same with 3D targets, a vital hit is a vital hit. With paper targets, your hits show up how far from the bullseye you actually are. You can group 2 inches all day and go to shoot paper and hit all left of the bull. Paper serves its purpose by showing you flaws in your form. But for many, it is a dreaded thing to shoot paper. I say that if you cannot stand to shoot paper, don't. If you like a challenge, do it you will only become better. There... I gave up my 2 cents.