Mama Mia....
Look - I'm no self defense expert and don't pretend to be. For whatever it's worth, my opinion is "less lethal" rounds are a gigantic mistake. All too often, people tend to relate an actual home defense scenario with one they've seen acted out on TV. The chance of a wild-west shootout in your living room are slim to nil....Think of it this way:
It's 2:18 in the morning. Someone kicks your door in. You spring from your bed - groggy with sleep and reach for your home defense weapon. If you're really a grass-muncher, it's locked safely away in a Massachusetts approved gun safe in your closet. As you get your wits about you, (sort of), adrenaline, fear, anger, confusion, shaky knees, pounding heart - all begin to kick in. You desperately try to find some eyesight. You turn on your tac light and it virtually blinds you. You pull it together enough to open your door and creep out into your hallway. As you round the corner, you are confronted by an armed intruder 15-feet away. Startled, you raise your weapon as he raises his - a shot rings out, your pupils dilate from the flash - despite all the talk of "auditory exclusion" you've read about, you go instantly deaf. The roar of a 12ga, feels like a kick to your ears, which instantly ring. All of this happens in fractions of a second, as a beanbag sails across your living room and hits the wall next to your target, or a rubber ball bounces off the door moulding....You have just killed yourself.....
The reality is, if you get a shot off at all - you have one good one in you - maybe two. In my personal opinion, defending your home with anything less than something adequate enough to end the threat the first time, is irresponsible to your family and even to the concept of home defense...