When you use the grid… Can you use one talent from one side & then on the next one down use a talent from the opposite side? Or is it like if you choose right, then you got to use all from the right side…
You can switch sides at each central node, but not between nodes.
Yes, you are not tied to left or right brench until the end.
Every time you have a node, you can pick the path you prefer, but automatically give up on the other.