Just a note that wax should not be applied from the stick.
Put the wax on your fingers, and apply until the string starts to feel tacky, then take a small piece of leather or a stout rubberband, wrap it on the string, and move it up and down the string until the wax is absorbed into the string.
Too much wax, is like a dirt magnet, which will cause premature wear of the string.
Also, at the end of a season, or when the string starts to look dirty, the old wax should be removed, and new applied. (This applies to the surface wax).