I just finished thoroughly testing a 3-9x Terra and the only significant difference I could find between it and a 3-9x Conquest was the eye relief. In the Conquests the eye relief is pretty constant at 3.5" or a little more, no matter the magnification. The Terra's eye relief was over 3.5" at 3x, but 3" or less at 6x and above.
It tested exactly the same as several Conquests have on my night-time optics chart.
