I'm going to be popping Ed on this I think, he used to be with it with his old owner as he's hard to manage, but I took him off it and he's been great. But with the livery move coming I think he might need some help to keep his cool
I'm currently using the 'Box Rest' for my boy and its had the desired effect. I would recommend Global herbs products to anyone.
I'd give it a go and see how you get on x