This is actually and endless source of frustration for me. When I think of grappling I think...
(Transition photo follows)
When it comes to "ground fighting" this is bout as far as I want to go.
etc.
But when ever I mention grappling I get the feeling others are thinking I mean...
and similar "really" on the ground stuff.
The last photo is the LAST thing I think anyone should want to do in self defense. Concrete and tile hurt in real life. more if you have this around your waist, turn the mag pouch 90 degrees so you can fit a Taser and you have mine...
not just the potential injury issue (when I was younger and rock and rolled the stereotypical judo ground game I went for a few years, not an exaggeration, with bruises on my hips and the waistline along my back. My wife started getting worried it was that bad for that long.) but imagine the instability created by the uneven balance of that crap, the access the bad guy might have to my tools in transitions.
The above is why global statements on "this is what works" annoy me so much. We all have different reasons we study as passionately as we do. There is no "special sauce."