Thank you An Thropologist!

I like your posts because they are knowledgeable AND polite!

My main area of knowledge is ballroom, but with some AT. I know naff all about Salsa and Charleston and so don't listen to me on that!

Apart from the names above, the real ballroom expert on here is Wysiwyg (an international adjudicator) who tends not to post more on particular threads nowadays. Also kaycee, who has competed and now teaches, is always informative and very polite and respectful. I'm not that familiar with performance AT. I used to dance AT each week for a couple of years and was meaning to go back to it sometime but haven't managed to fit it in. However the AT I danced was completely improvised and therefore very dependant on the chest movement and other leads.
I think your comments on Natalie's AT are very interesting and agree with them (walks, brushing, collecting, lead). It is true of all dances that the context can make people forget they are being led even though the rule should be the same. e.g. Social ballroom improvised and so requires a clear lead, competitive a mix of predefined rotines and improvised, exam oriented or performance completely predefined. So Natalie should have been waiting for Artem's lead or for Artem to hand it over temporarily to her (as happens often in AT) even though she knew what it was going to be! For me, there was lack of connection and Len's use of the adjective surgical was a bit unfortunate (and Freudian?) since it looked a bit like that to me.