I spent some time in Idaho with my 7 Practical and shot from 1180M to 1600M. At 1600M I had a significant jump in required elevation (1.5 mils) to make hits that didn't track with any of my other engagements. I was only off by .2 mils at 1520M and dead on up to that point. I'm running a 28" 1:8 Krieger, pushing the 180 ELD-Ms at 3190. As strange as the jump in required dope was, the hits were consistent at both 1520M and 1600M. Calculator was a 5700 w/ the latest version of AB. All environmental data was backed up by about 10 other Kestrels, GPS, LRFs and compasses. Any thoughts?