Click over to the quarter turn chasse lock combination in the quickstep.

Look at Jonathan's two forwards steps at the end of the chasse and the lock, where he lowers through his left foot in preperation to step outside partner.

Notice how the foot goes flat while his feet are still apart. See how this naturally blends the lowering of the foot, into the continued lowering of the body into the knee, and allows him to dance down low through his legs when he finally passes over that foot.

This is precisely the kind of detail you pick up when working with a truly expert coach, but would not know about from reading the book alone. Some might mistakenly think it contradicts the book, but in fact it doesn't - the book described the foot timing in the case without rise or fall. In the case of fall, especially fall in perpartion to move outside partner, the action is substantially enhanced by lowering out the foot rise before the feet have closed.

i am afraid you are wrong. The book does deal in rise and fall