I'm almost certain it's not pain. It was in the past - but farrier, physio and dentist all declare him to be a happy horse. His saddle is a Vogue treeless, so that ought not to bother him. So grateful for this advice.
Thanks so much for this. It all makes sense. He occasionally plants in school but yes I think that's confusion because I am not making my aids clear enough.
I'm getting my young Cleveland Bay used to hacking out alone. He's had a long period off work for health reasons, is only 8 and quite green. His problem is planting - and because he's 17.2hh, when he decides he ain't moving, he ain't moving. I know he musn't get away with this, so I get off and...