NB: Chocks is a big moving warmblood, some may sweep more than others.

Yes, but Earl (a skinny TB I also ride, who feels tiny after riding Chocky) isn't

), and even with him the more I allow my hips to go with what might be a big sweeping movement, the more one sorta happens

(As I said though, don't "allow" to the extent that you end up sort of forcing yourself to ride a bigger walk than is happening, so pushing with the seatbones)