The problem is that the cartridge doesn't really fill any pre-existing void.
I'm actually impressed with the load.
It actually creates another void: a 6th chamber in a j-frame or sp-101. It is up to YOU to fill it ..... and empty it, and fill it again.....
Were you impressed with the .32 S&W Long/New Colt Police? How about the .32 H&R Magnum? No? There is a void it fills: A .32 cartridge with impressive terminal ballistics (for a self defense/Carry gun).