On disliking the going, would you say their ears would be pinned back if disliking the going or would they flick forward and back intermittently during race on going they dislike?It may be the paintwork or perchance was there any shadow at the take off side given The New Lion had a similar fall/dive.
Always watch a horse's ears to check their focus on a jump; if pricked they are focusing , if lying back they are not.
Similarly if they dislike the going their ears will tell the tale.
I remember watching a horse at Cork races one day with connections; there was a stretch of heavy going at the second last fence and at the opposite fence on the far side and the horse hit those fences on each circuit which cost him the race; his ears told the tale each time and the horse was genuine as day.
No doubt the ophthalmoscope will be dusted off and batteries replaced in Seven Barrows though I fear Nicky's eyes more than the horse's.