In waltz, it’s often referred to as “ooze the twos,” but’s it’s actually the twos (one-TWO-three) and the fives (four-FIVE-six). What happens is that the twos and the fives are held infinitesimally longer, with the subsequent three/six being that much faster. It just gives the visual impression – and, to those who are dancing those steps, the FEEL – of “oozing.” Truly, when a partner dances this way with me, it greatly enhances the feeling of the waltz – i.e., it just feels right. In tango, the timing is SSQQS. However, if a couple dances the first slow slightly faster, this allows the second slow to be a little slower; this further allows a bit of a “drag” between the second quick and the final slow [of eight counts], which just adds to the “snappy” feeling of the tango.