I disagree with Neil. I am left eye dominant and shoot right handed. At first, the fact that I was left eye dominant made it difficult to align to the correct points as shown by Stan. I actually had to use a different way to find the correct points initially, and then the system worked great for me. You still have to be aware of your eye dominance though, and sight the line with that in mind.
I am left eye d too. Watch Landon shoot, he is severe left eye dominant, right handed. Works fine.