Attached is a little video of Gusti during his first training session. I hid it away because it wasn't all that pretty. However, it IS a god example of an outline that should be avoided. Gusti was in a bit of distress and went hollow for a few strides. It's a good example of this because it shows the hollowness quite easily and then he moves into a more relaxed frame.
If for some reason he was allowed to maintian this hollow frame, it would really develop a brace in him and over time harm his health and soundness....riding or driving.... I can't imagine wanting to develop a brace in a neck that size... http://www.youtube.com/watch?v=3dyDzXKK4OY Wanda
