All these reviews with pics of braced pistols with vertical grips 
87-Degrees off Horizontal isn’t “Vertical”.
That’s my story and I’m sticking to it.
I never did get the vertical foregrip on a pistol giving them such a hemorrhoid. Every bit of training out there today says to use 2 hands if you have the time. Using a vertical foregrip might you be more likely to push left/right/up/down on shorter pistol platform?
Its like any other gun control.
It’s not about guns, it’s about control.