Got a noob questions since I can't seem to find the answer in this thread.

So I have a B4.1 Worlds car and I'm trying to understand how the aluminum rear hubs and suspension mounts work together. I understand they are all designed to adjust rear toe in my car. And it sounds like instead of just replacing the suspension mount to increase or decrease the rear toe, you can swap out the aluminum rear hubs since they are easier to get to. But I also read those aluminum rear hubs do change the way car feels since they are further out.

So I can run my 0 hubs with a 4 degree mount and have 4 degrees of rear toe, but instead if I use a 0.5 hub with a 3.5 mount again I have 4 degrees of rear toe, but the car will handle differently???

And those A, B, and C hub braces are designed to change the roll center for the car right?