Tango Technique :: The traspie side step in milonga

Here are Javier y Andrea again...demo'ing a milonga...note the traspie side step...from time stamp 0:32 to 0:36



He also leads it right from the get go with Geraldine Rojas in this demo to Biagi's "Flor de Monserrat"


I still have issues leading that...I can lead it "to the beat"...but when I try to lead it traspie, I lose the follower. One of my teachers told me the key is to uplead it...then she has no choice but to move her trailing foot quickly to stay with me...

Any comments?