I totally agree with you Mike on everyone have their own perception.
All of the stag material I'm referring to has been purchased from the knife supply companies I have bought my supplies from. I've had all types of things happen with stag......but like I said most of it is minute and most people wouldn't even notice it. Like I said, I'm just anal when it comes to stag that I put on something I'm putting my name on.....and again, most people wouldn't even notice the small changes I'm talking about.
I remember having a piece similar to what you have shown in your post that didn't go all the way to the end nor through the depth of the piece. I accidently dropped the knife on the floor that had one of what you are calling a valley in it and when I picked it up the valley had extended clean to the end of the handle!

That was when I realized it could crack and why I have always called it a crack. Would it have done that without the force of the drop? Probably not. But after that I call them cracks and handle them as such. If it doesn't go to the end or off the edge I simply drop a single drop of super glue in it when finishing to stablize it from further damage. May not be necessary but again...I'm just not going to trust it.
Not trying to or wanting to fight about it......just asked a question.