Question on Blood Sacrifice (and Mictlan)

[onomastikon]

Hello, I did some searching, but didnt find the answers to these questions.

I was thinking of trying out Mictlan because I like the tribal theme (I enjoy Machaka too), and see lots of their troops are sacred. Just sounds interesting.

But I still don't understand blood sacrifice, and especially not with Mictlan.

How does blood sacrifice work exactly -- I mean: by how much does the dominion increase per blood slave sacrificed? And this is supposed to increase the dominion globally -- does that mean that if it is increased by X, does it increase by X *everywhere* at once (including enemy capital??) or only radiating out from the point of sacrifice? And if so, how does it radiate out? Like a temple (which is permanent) for one turn only or at a different rate? Does the initial "Dominion Strength" setting (during God creation) factor in, and to what degree?

I played Abysia a bit and just ignored blood, since I didnt understand it and it did not seem very good to me. Dominion spread normally anyhow.

But with Mictlan: Apparently, dominion will not spread without blood sacrifices. But during God creation, I can choose "restless worshippers" -- how then does that work? How do their Temples function -- simply as places for recruiting and for doing blood sacrifices, but with no dominion spread effect? Does the prophet still spread dominion? Does the Pretender?

I read the Mictlan post started by Moodgiesanta, and he said he would make sure his dominion never entered his main research province -- how does that work if dominion doesnt spread in the normal way but rather globally?

thank you for the help