I don't know, I tend to think it is the distance from your eye to the front sight that gives you accuracy.

I had a Yikes sight that I was finally able to make work (lacked adequate adjustability but I made it work), and once set up I was as accurate as anything with it.

The only reason it's not on my bow right now is I let my brother try it, as he wanted to get away from his string peep, and I wanted to try the no-peep I had in my stuff to try/junk drawer...

Here's the Yikes for comparison-