I have some questions myself - like, I know Federal doesn't make FLITECONTROL® wads in every shot size, but doesn't it do basically the same thing - keep the shot relatively tight for a long distance?
It may be the same principle, but it's much safer in execution.
The flite control wad is sized to the bore. The cut shell is sized to the chamber (larger than the bore). Thus the crux of the problem..............