Thanks for the BS from my Web Page???
Oh...for a moment there...
I don't think you are going about it all wrong. In fact, I think you have the right idea and are, in effect, really using the bonder for what it is - an attitude setter upper. Once you have the attitude you want you find ways to use that attitude to its best advantage. You build on it to fit your unique situation.
The solution here, which you appear to have stumbled on all by yourself, is to have separate "cues" for each action.
You say you are working your horse in the barn with a leadline. If the horse is contained, *I* would dump the leadline and work the horse without it.
I would use my cue and then get the horse to do it. For instance, I'd say, "Walk!" and keep the horse walking. If it came into me I'd repeat the cue and send him back out. I'd do the same for the trot and if room allowed, the canter.
A cue can be a word or an action that tells a horse to perform an action. "Walk" means walk, "trot" means trot, "canter" means canter, "whoa" means stop, "reverse" means reverse and "kiss" means come to me and stand beside me until told otherwise no matter where my eyes are fixed or what my body language is.
It isn't the best idea to stand in front of the horse in a "I'm a big monster!" stance and then tell him to walk because they are two somewhat conflicting signals. Ideally you want your actions to complement and encourage the horse's actions. You can have both a word and an action cue that says the same thing and can be used interchangeably. "Walk" can mean walk and so can a thigh squeeze, a slight lifting of the reins or what have you.
Horses can build up quite a repertoire of cues. John Lyons teaches 8 foot cue locations from the saddle alone. There is no reason you can't have separate cues for "come in" and "stay out". You're doing well and you'll figure out the cues that work best for you.
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