Got a question about shooting either up or down hill. I seem to remember reading something years ago about this, but don't remember the specifics. I understand the whole horizontal distance vs. the distance up or down slope, but I'm still confused. If I'm sighted in at about 2 1/2 inches high at 100 yards, and the horizontal distance is under 200 yards, shouldn't I just hold on-target and still be within my margin of error? Any and all help appreciated- thanks!