Have to say that I am surprised at the talk of 4 tracks in several posts. I can't remember anyone teaching anything but 2 or 3 tracks. One self described "ballroom" book I am reviewing makes a point that you DO use '4 tracks' in one of the two styles (International or American - can't remember).
it described like that although there are indeed four tracks when you
step outside. Some milongueros/as lean and disassociate enough to reduce
the tracks to two, someone here described it lyrically as
"walking the tightrope". Try it with the right partner!
I assume you mean two tracks being the path the feet of both partners
take when walking in line. Track one being man's left, woman's right and
track two being the one taken by the other feet.
I don't think of tracks except when writing here. Oscar Casas often uses
track terminology (three tracks) in videos/classes about cross system
walking. It's best not to think of feet at all until much later if at all.