Thanks,
Looks like you have the new admixture..
I haven't . I'm still 31% eastern Europe, 27% BI, 22% Scandinavian, Finnish Volga-Ural 13%
and central Europe 7%.
It sure seems like you and your siblings are quite different.
Did you get really different matches that were helpful?

Also is there a difference in appearance that matches the difference in admixture.
For example, in my family, I am very pale with blonde hair and blue eyes
My older brother has black hair and blue eyes. My Dad had black hair and blue eyes
We're pretty sure that is where most of the eastern Europe is coming from.
I would think I would have more Scandinavian DNA than he would have.

Perhaps that is too simplistic.