Re last past of jofjonesboro-I am not sure what you are trying to say, but it smacks of rudeness and sarcasm to me, and doesn't seem particularly useful.
You are incorrect in assuming I am taking up dancing as a geometry assignment. I am training for professional exams after a long and successful amateur career. My standpoint is that I love the artistry of good ballroom dancing and seek to understand the factors that underpin it, particularly from a teaching point of view, in the perhaps naiive hope that such an understanding might inform my teaching.
So lets have a look at where you stand.
On the on hand you are happy to tell me that there are differences in foot rise and that this is important for retaining the character of the dance etc. You argue with someone else and challenge them when they tell you of a 45 degree angle they claim to have seen on video - so you obviously have some idea of your own as to what those angles should be. But then in your most recent post you kind of imply that the details do not matter and I am a fool to even consider it. So which is it ?
Perhaps the unnerving truth is that good quality, eye-pleasing dancing is NOT the result of the sorts of technicalities that the text-books consider in such detail, and not quite as easy to box off as some would like to think. Which is fine - but then perhaps it is time to start analysing the things that do matter.