Red Lion,
I had a friend help me with it. It only took a bit of time to tweak it. I didn't even watch the intructions that came with it. It is helpful to have another person there.

I don't have a problem with the cluttered sight window.I understand that some do. It just doesn't bother me I guess. I shot a hog last weekend and even tho' I was looking into the setting sun and aiming at an angry bluff-charging hog the sight allowed me fast and easy target acquisition.