>>545497I tied the "forearms" together when the horse was standing, legs parallel. Without forcing them together, so at shoulder width. Naturally, loose enough to not disrupt blood flow and tight enough to prevent slipping.
If you do it right, the horse doesn't even notice until it tries to walk. Then it can only take small steps which are tiring, so it doesn't walk much.
But you should probably talk to someone IRL about this, there's too much that can't be explained in text.