Watched the www.runhennyrun.com footage of Peter Atkin's round at Rolex on HJ Hampton.
First thought? HOLY CRAP those fences are big!! I did know that, but facing the reality when viewing through helmet cam almost resulted in a need to change underwear.
(Annabel, I will never cavil again when you raise the rails.)
Second thought -- is this horse a good doobie or what?? Look at his ears as he gets a bead on the fence, when he checks in with Peter, and when Peter praises him. You can see him thinking, "Hot damn, I AM a good boy, Dad!"