did some dark at dusk evaluations with three scopes last night: Zeiss Conquest 3-9x40, first generation Vortex Viper 3-9x40, and VX1 2-7x33... picking out various clumps of grass in a woodsy draw. the VX1 was only slightly behind the other two in light gathering (evaluated at 6X and 5X) which is to be expected. Could not tell a difference between the Conquest and the Vortex. no issues with finding the crosshairs beyond legal light, but i can only believe that an illuminated reticle will make an ethical shot much faster than otherwise. i am thinking i can push close to a 50mm objective and still not have an issue mounting the scope in the low Talley rings...