DabDab
Thinks the luddites had a point...
The silhouetted horse is giving an example of a horse that is on the vertical but not through from behind, this causes extra stress on the back that can cause kissing spine.
Oh good, I'm glad I remembered what I had read on that site vaguely right - I typed the above response a little quickly without checking the site and I was concerned that I might have got sites mixed up (there have been so many mentioned on the Armas threads). TBH I don't think the silhouettes are that helpful except for illustrating the head position - I think the photos they use are far more illustrative.
That's interesting about Jiao, I've only ever seen pictures of him riding, but you'd think with a father like Nuno...
Anyone know of any good videos of Jiao Oliveira?