Originally Posted by
Bagheera
Hi puffin, I really hadn't thought about this but it is true !
A better way to explore it would be to model a horizontal launch by setting the sight height to approx your own and specify a "zero offset" of exactly the same,using a short range . I'd use a zero range of 10m not sure why, dont trust percentage rounding errors which could get out of control at micro ranges orders of magnitude less than your working range eg drop difference over the ES could be like a mini fraction of a millimetre and just rounded out.