The classic vaquero and modern practitioners of the "California" cowboy tradition started a young horse in a bosal hackamore, then over time moved to ever-thinner and lighter bosals, then added a spade bit, then eventually transitioning to a spade alone, ridden with romal style reins, often retaining a light "bosalito" without a mecate. This process took many years and required an expert trainer. 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.