Daddog,
I'm referring to an adjustment that you make in the plane while you are flying. While in the air use Shift-F1, Shift-F2, Shift-F3, and Shift-F4, to select between Short, Med., Full, and Ground Vis. range. You may have to check your keyboard map to make sure it is programmed that way. I didn’t know about this until about a month ago. I had been flying around on Short vis. range the whole time wondering why I could not see Bandits as soon as my Squad mates also my transitions at the horizon was like yours, very abrupt. I now fly in Med. vis. Range and have Horizon transitions like Dux, plus better range spotting Bandits.