Thanks, Iron. What's good is I can be pretty specific in vocal lingo as you are talking here. It's like I've studied and know the game it's just now that I'm starting to actually throw the ball. Need to get the "coordination" part of the game. It's good to know the talk to understand what you and other people have to say. Like ..chest, mixed, and falsetto voices, etc.
I've done some of the exercises and have watched many of the YT vids. There is good stuff there and it's what has gotten me at least to where I've gotten anyway. So I'm definitely using resources that are available. So may different tricks and custom exercises and this and that that it's hard to keep up.
I am using my diaphragm for support to build the compression that is needed to sing. At times my throat slips in because there is such a fine line and many times it's not know that the wrong path has been taken until it starts to hurt. I can say the main difference between my first and second take is I made sure there was no slipping into my chest voice when it's supposed to be mixed. The second take is all mixed voice and I didn't slip out like the first. Also, I fine-pointed the pitch, even though it's not 100%. It's much more "on" the second time.
I really thing it depends on what is being sung as far as talking level and filling a room. Opera, for sure, but I think rock singers sing more mixed voice which it in the middle and doesn't have "big body" frequencies to be anything more than ...narrow ..so to speak. I think you are talking vocal power where I was talking a sheer difference in near yelling and singing. The key was that what I was doing was blasting me out of my mixed voice back into chest. If you're in mixed and drop to chest it will be the "sound like

", moments in the song where obvious straining is heard. Lol.
I'm serious to the point of just wanting to sing well for recording and possible "fun" basement bands that suck more than I do. I guess until we're all good.

I'm too old and my/out time was years ago. There would be nowhere for me to go with it - too old and ain't doing no Bieber. (Actually that kid can slam singing from what I've heard.)
It's funny because all along this journey it's been about different approaches, modified approaches, and trial and error. Each iteration seem to move more into doing the right thing. I've just experienced something today that vocally sounds better and more "real". I'll put it out in another post at some point. I don't want hog the place constantly with this topic. It's fun and cool tossing in a piece every now and then. Everyone can PM each other "Oh

, Sapient dropped another one. He did? Yea, he still thinks he can sing." Lol.
Thanks for the post and great info, bro!