Anonymous. Do you have any tapes you can look at. It would appear not. I suggest you try to get a copy of an IDSF European or World Final where at least two of the dances are solo, meaning each pair perform on their own for the full one minute twenty. Before they dance as a group. We have had on cable , which I copied. All of 2002 through to 2005. I would suggest that in the one held in Russia ,the solo Foxtrot by Soale and Cersoli is one too watch for everything that would need to be known about the bend in the knee on the supporting foot. Richard Gleave was once asked how far would one lower. There is no limit as long as you can get up out of it. John Wood is one who gets incredibly low. If you have no tapes go to the learning center on this sight, choose Feather Step International Style. That`s what it is their for. .