cumminscowboy wrote: "a properly designed duplex does the exact same thing."
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Sorry, but that's just not the case. I can assure you that on the type of targets I shoot (primarily dark-colored hogs under nothing but moonlight or in very poor daylight), you can't tell where a Leupold or Swaro duplex begins or ends -- and that is the case with many narrow/thin duplex-types. The Zeiss #20 and Nikoplex are exceptions and are heavier and can be made to work, but a good #4 (like what Zeiss once offered) is truly invaluable in getting the crosshairs aligned on the vitals. The Burris #3P4 is also a very good low-light reticle.
I wish I got to shoot hogs around here at midnight
in my mind with a #4 all your missing is the upper heavy crosshair, of the duplex. so unless the case is made that, that is somehow blocking the target I just can't see it making a difference. my eyes are naturally drawn to the center of a duplex reticle than a #4, different strokes for different folks I suppose
