Had the same problem with my Trophy Ridge Matrix. Trophy Ridge sent me a spacer to place between the riser and the sight. The technical rep indicated that bow riser designs have changed over the last two years and thats why it wouldn't sight in without the spacer. My bow is about six years old. Why they didn't design the sight to fit all bows, I don't understand and I consider it to be a flaw in the design. I am still having problems adjusting the sight vertically. Even when I move the peep sight. I will probably end up sending mine back and trying a Copper Johns sight.