Hornady Ballistics app - Zero range or zero angle

Which one do you use? Is the zero angle worth the extra effort? I’m looking at a 6400’ delta in elevation where I set my rifle dope up vs where I will be hunting next month. Does the zero angle really correct the elevation change or am I misunderstanding?

I like the idea of zero angle but I kept running into bugs with it so I switched back to just the normal zero range.