Don . I don't see what up.down ,up, has to do with arriving a little late on the second quick. There is a second compresion off the (ball,toe,) of the first quick which gives us more flight so at the end of this flight as we arrive on the ball of the right foot we may be starting to lower. As we have a (ball'heal, Ball)on the second quick we have to make sure our body does not arrive to early over the foot causing our weight to shift back. I like to feel that my legs are swinging at the same speed or that my timing is 1.1/3 beats on each step,but what I think Im doing and what I actually do are not the same and would take a good teacher to analize it,but everyone says my timing is spot on ,and that we are very smooth and it feels good so I don't care what the book says. Doug