Drooling has more to do with flew length and tightness, as two of the four major salivary groups excrete in the "cheek" area. Also even though the other two are "in" the mouth, loose flews do not "hold" anything in, but drain all the saliva directly out the sides. Also, Brachycephalic syndrome is caused more so by soft tissue, not nose length. There are other reasons for lack of wind, but they have nothing to do with muzzle length. Boxers are one of the least inhibited breeds with brachycephalic syndrome.