Dominion Push

[Immaculate]

Does anyone have a good link to a strategy article on dominion pushing as a weapon?

I have a few questions:
when is it a good time to try? timing? circumstances?

How many priests can blood sacrifice in one province? if unlimited, it seems like multiple priests cutting necks in one province will eventually overwealm neighbors even if they have a temple/prophet/even pretender?

is there a way of making an intelligent guess about an opponents dominion value?

Lets say you do extinguish their dominion, what happens? Empty provinces? What about their home capital fortress?

Anyway, any responses are welcome.

I.