I think it might be kind of hard to find a practical application for something like what the OP is referring to. Sure, handicap trap or self-defense might be a good application. According to most states' hunting regulations, shot has to be loose, i.e. not bound together in any way, in order to be legal for hunting birds. Unslit cup wads kind of try to accomplish what the OP is asking (in my interpretation) yet still stay within the bounds of the laws. Also oneounceload's input makes sense, most of us need the spread and stringing to be able to hit a target in flight, or air burst flak, in my case.
I will ask the same question Dave asked, whadda ya got?