Hello, HOYABUSA1988!

Answered you in PM. Have a nice day!

Much appreciated help Ivar! 

I wanted to write when you first posted , as I was confused by what you had written, and you had already had an a answer from Ivar so I thought it was case closed.Maybe  it isn't.

My first concern was that I couldn't understand  how players leaving a clan would have any impact on the draw for opponents in Fury. 

I thought they are still in the kingdom, so if they count every town, the total influence would be the same,perhaps it does matter after all, but cant say as I don't know how the decisions are made.

I can see it does make a difference for a CvC which is why I wanted to comment.

Recently my clan had an opponent with just short of 153 billion, and we are no where near even a billion.

Subsequently  someone has posted the  league levels,which are supposed to have come from an official source.

If these tables are accurate, a clan with 153 billion should be in tier 4 , so by gerrymandering to be in league 1,it gives them potentially an easy win.

Yes I could see that problem as well. Joining the clan moments before cvc is announced. However if they join after the announcement their score will not count for the event.