I just got a Truglo with the light already on it.I like alot! I was using a PSE 3pin with the rectangle cover and I think the cover bothered me! The round cover seems to help my eye relax and filter to the pin and target,hence shooting improved dramaticly! Only thing that would be nice with the light setup would be if it was varitable power,the pins can overpower your eye if target is very dim...loose impact point in vision!