"Question to anymouse. Is there no turn of the feet at the end of step 1 ie after placement but before the feet pass ? There will after all be some rise before the feet pass."
According to most leading teachers the heel should break free from the floor before the feet pass, but there is not turn of the foot at this time. The feet won't really begin to turn until the second step is placed.
"Doesnt the lady start her turn on the ball of RF foot before step 2 ?"
Officially no, the turn is made between steps, not into step 1. However, backwards CBM steps are usually placed with some degree of turn (toe in), which is different from the execution of forwards CBM steps.
"Incidentally where should the ladys RF be at the end of 1. Level with the LF (equivalent to the man) or half way towards it (given she is coming to a closed position on 2)."
Probably about halfway closed.
The timing of the rotation relative to the closing in a heel turn action is a subject of some ongoing debate depending on who you talk to. I'm personally of the opinion that many people do not dance it with quite the action they claim to be using, and that what they use when actually dancing is different than what they do when demonstrating it slowly and purposefully. On skilled dancers, the habitual action used in dancing tends to be cleaner and more natural than the slowed down demonstration one - in effect, the body has more insight into how to execute it than the mind does.
If for example you meet someone who claims that the foot does not complete its closing until the end of the turn, and see them demonstrate that, you are likely to see their closing foot execute a little ronde action, as this is what would be required to actually accomplish closing to a standing foot that is rotating that far during the closure. But you don't tend to see such a disruptive decoration in actual dancing.