My 2 cents.
What happens with the elbows should be a reaction to how you grip the pistol...not a way to grip the pistol.
If you Vogel grip and try to tip your index finger knuckles into the grip and toward each other...your elbows will
move up to some degree. This is a result of your grip. Same goes for any grip technique. The elbows will go...where they go.
I just grab the thing and hold on as if a 225# MMA fighter was trying to take it away from me. (I grip like Vogel) (or he grips like me)