Do most scope manufacturers design their scopes for their mechanical zero to be in the middle of the elevation range? I think the rule of thumb when zeroing in a scope on a rifle for the first time is to set the windage and elevation to the center of it's range and make adjustments from there. It would seem to me that scope manufacturers would account for the need for the most adjustment for bullet drop, and mechanical zero at the middle of the elevation range would leave a lot of clicks lost to adjustment for bullet rise which there only seems to be a need for a few MOA when shooting at close range like when a deer walks up to your tree stand to admire your choice of laundry detergent.