I have a few tapes by Hilton. Woods Gleaves. I look at their position in relation to the floor boards, and then in slow motion see where step four on an Open Impetus Turn Waltz time goes. Also have a look at the shaping of the foot on that step. The one i was just looking at, the step was surprisingly wide. It was an action step and might have been neccessary at that point in time. But wide of the body it was and there was a toe turned inwards there also.