I don't know why, but I've ran into this problem and seen it often with spot hoggs on Hoyts. Luckily the hogg it I have is centered perfect on my carbon element. My boss and sdp were just like yours. Personally, I'd say if you have both screws secure, you're good to go. Doesn't seem right, but unfortunately it seems like it is what it is. Adjusting your peep would be the only thing else I could see. Someone will chime in with a better answer.