I'd second the suggestion for Diane Followell - she is absolutely excellent. I've never had a better instructor infact. Classical trainer - has got my ex-racer/team chaser (and I - I have very little experience of dressage 'proper') going like a star. She was trained by Nuno Oliveira for 3...
I think the thing I find sinister is that these people make a concerted and pointed effort to propagate their methods, marketing them, as 'natural' and a way/method to 'bond' with a horse. From the evidence, it's reasonably obvious that the methods are not natural, nor indeed kind or...