 The "Texas" tradition cowboy, and most modern trainers, will often start a young western riding horse in a bosal, but then move to a snaffle bit, then to a simple curb bit, and may never introduce the spade at all.Other trainers start a horse with a snaffle bit, then once lateral flexion is achieved, move to a bosal to encourage flexion, then transition to a curb.However, this sequence is frowned upon by those who use classic vaquero techniques.