Khassera,
Yeah, you seem to be right on the money with your theories. I would be happy to listen to your examples.

I will say that it's probably a good idea to warm up with the monotone examples. "Roots bloody Roots" from Sepultura and "Fight Fire With Fire" from Metallica are two classics which sound killer but don't bounce around much from note to note. This will give a great indication of where to put the sound and how much force to use in a safer manner. Then once that safe approach has been discovered and second nature, then move on to the screams which are sang, Pantera, and Slipknot for example.

Here is one more example but this time it's a little harder. It's "Left Behind" from Slipknot. It's basically the same technique. A good way to test your own scream technique is to do a song which switching between screaming and singing. As you all know, today, it's quite popular to do that. As I Lay Dying and Trivium are two good examples. So if you can quickly switch from scream to sing then you are doing the scream safely.

Guys,

I can't thank you enough for taking the time to post and record these examples.
This is really something I want to learn by heart. I feel like it's the major thing that is missing for me as a vocalist, at least for the time being.

Is there any good starting sounds besides the "grunt" that I could work with? I figure I need to grasp the basic placements and work from there.

When I sing clean, I'm confident that I am placing the tone up in the soft palate. But I'm not as sure when it comes to the powerpush. I'm starting to suspect that I'm not putting it to use as much as I should be doing.
Could this be what is holding me back when it comes to grit?

I figure I ought to practice the powerpush more, but I find it hard to understand when you should use it, and to what extent.

How much breath do you use in your grit while doing left behind?

Meh, i can't manage to get that screamish sound, i can do the false chord thingy but it sounds too raspy.Any tips?