I don't agree with popping them with a bit to stop them from walking forward. They should just know that it is not acceptable to walk off when someone mounts and they must stay stopped until the cue is given to walk on.
I admit I am new to training green horses.
I do break half wild horses and get them to quickly stand quiet while mounting by using the reins and just halting them. I mount, make them stand totally quiet and only when I feel they are relaxed pat the neck and squeeze with the legs to have them move out.
Within the week of starting a totally green half wild horse they will stand for the simple act of mounting.
Once you are mounted and you want to stop the horse what do you do about halting them?? I sit down back in the saddle, say HO, and pull the reins if they do not stop. Seems logical enough?
So why can't |I do the same thing when I go to mount and the horse moves forward???