True that balance between fletch and head design, gets the job done most of the time. I have seen things happen in high quartering and cross winds that have surprised me. With a lot of feather and a large head, and arrow can drift more, but things really catch ones attention when they take crazy side steps. That is when a Hill head will out perform a head like the ones that I had at the time, the large Magnus. A strong quartering tail wind with the wind buffeting off of a steep slope. After I missed the first shot and the deer bolted, I took a second test shot with a Hill on the arrow, it was good and on the mark, then one with the wide solid Magnus and jumped all over the place again. Prior to that I believed they flew the same, but I guess it was a variable that I did not consider until it happened. It was a really big buck and I can still vividly see that arrow taking that huge side step. Good thing that side step was a complete miss.