Which of the following is NOT true about the 2-comb technique?

The statement about the 2-comb technique creating a flat ridge is not accurate. The 2-comb technique is primarily designed to create distinct wave patterns and can add volume and texture to hairstyles, rather than producing a flat ridge. In practice, this technique utilizes two different sizes of combs, allowing stylists to manipulate the hair in a way that enhances waves and curls, delivering a more dynamic look. By using two combs, stylists can achieve varying sizes and depths in the styling process, which contributes to the desired texture and volume. The overall goal is to create movement and dimension, making a flat ridge contrary to the technique's intended outcome.