Okay, let's back up.
1st - Fast Jimmy said that when your dominant tone is, say, Aggressive, that even if you choose a Humorous response, your dominant tone is still Aggressive and colors all of what Hawke says.
2nd - David Gaider says this is wrong.
3rd - I said that, as I read the Official Guide to DA2, that was the impression I got from the explanation of Hawke's Personality, and asked that, if that was wrong, how did Hawke's Personality work? As per others pointed out that this was wrong, in regards to the line immediately following the choice of Humorous, I said that it was STILL how I read the description and asked for clarification on Hawke's Personality.
4th - Allan, you responded pretty much the same thing. That is, that the tone immediately following the choice of Humorous will be Humorous regardless of dominant tone.
5th - Though I called it a minute distinction on what I was taking from the guide and what Fast Jimmy had said, I admitted I was wrong in my interpretation of what the guide had said (overextrapolated it, if you will) and accepted that the tone choice in dialog affected the stack and ONLY the immediate line, with everything else being influenced by the dominant tone.
6th -
Here's where I get confused - Allan, you responded to me with this
"So no, the difference is not that the "next bunch of lines spoken by Hawke before you get to make another choice are all Diplomatic in tone." The majority of lines chosen in the game do not have a bunch of lines spoken by Hawke before you get to make a choice. So to be clear, the example I was referring to was the one it seems the guide was referring to: the very first conversation choices.In fact, the majority of the PC lines spoken in the game are spoken with the tone chosen at any given time, not the dominant tone."
Let's just forget all the emphasis you place on the word
first as well as my responding to said emphasis, that just is super-confusing.
Is dominant tone used often or barely?
Does the stack matter hardly at all?
Does the choice of tone in a given dialog option:
- add to the stack? This seems to be universally accepted in this discussion
- affect the immediate line spoken after the choice you make? This ALSO seems to be universally accepted in this discussion
- affect the lines following the first line spoken after the choice if it doesn't change the balance of the stack enough to change the dominant tone? affect the auto dialog outside of conversations if it doesn't change the balance of the stack enough to change the dominant tone?
Because when you say the following -
Allan Schumacher wrote...
I think you need to Occam's Razor your interpretation of what you read in the strategy guide, because you seem to think that my explanation, and what the guide said, aren't in alignment. They are, but you seem to be reading more into the words. At least the passage that you quoted from page 160 anyways.
To rephrase the section from the strategy guide that you quoted:
There is a dominant tone system in the game, which starts with your very first dialogue choice. Which ever option you pick adds a value to that tone, also setting your dominant tone. To establish a new dominant tone you must pick enough dialogue options that are of a different tone to exceed the dominant tone's value.
The tone scores also appear to be halved at the end of each act, which means it'll be easier to change your dominant tone at that point.
Which doesn't disagree with anything I said from the start. I initially extrapolated MORE than that, but what you say here is congruant with all that I've been saying, so you aren't clarifying anything.
It's like as if I said a car was red and also shiny and clean, and you are now going to great lengths to make me understand that the car is red.
Let's take the stack and how the dominant tone is decided... as given and universally understood. And then we can stop wasting time writing number charts. I don't think this was ever in disupute, ever. If you think I was disagreeing with how the numbers for the stack worked, I'll clarify - that was NEVER the question for me.

So, again, what I've been trying to figure out is WHEN dominant tone took affect, and WHICH LINES it altered.
Not HOW dominant tone was determined. Not WHEN it was determined.
There's no need for Occam's Razor. I'm not trying to understand a phenomenom and needing to choose the less complicated versus the more convoluted explanation. Whether dominant tone was used to decide all lines of dialog or just auto dialog, or however it worked, is not a choice between simple or complex.
Unless you are trying to say the more simple or more complex USE of dominant tone... as in, how much more effort would be needed to be put in to the extra lines of dialog for more use of dominant tone chosen responses. But, honestly, that can of odd use of Occam's Razor would then lead one to decide that shooter games would only ever use one kind of gun, one kind of ammo, and you'd only fight one kind of enemy because of, you know, parsimony.