Assure correct Alpha Sort?

I feel a Bit silly because I asked this once before in a pretty similar Way and Alpha Sort was one of the Anwers. Now, Alpha Sort is supposed to sort the Alpha Layers correctly, or isn’t it?

How can I assure the Alpha Sort will sort correctly?

Alpha Sort only solves half the Sorting Problem. While Clip Alpha would work perfectly, it doesn’t look very nice in this particular Case (… Clip Alpha doesn’t look so pretty for Hair :confused: ).

EDIT: I did search the Forum unto 7 Pages to find a Description of Z-Fighting, but increasing the Faces’ Distance did not work for me. I did not find any Explanation on how to make the Alpha Sort do its Job properly. : (