I used the Hindsight in the beginning of last year. I liked it for the most part. It seemed to take alot of work to get the sight to line up just right. I went to shoot leagues with it this winter and the rear sight was loose. It was more frustrating than anything trying to get it back where I had it previously. IMO it is a good concept and product. Just be very cautious that you dont knock it out of alinement in the woods. I went back to the good ol peep after the first week of leagues. I was just more comfortable with it and didn't need any more aggravation.

Just my $.02
Erik