What is the primary benefit of using a slithering technique when cutting hair?

The primary benefit of using a slithering technique when cutting hair is to add texture and remove bulk. This method involves sliding the shears gently along the hair shaft while cutting, which creates a more feathery and textured look rather than a blunt edge. By doing so, it helps to lighten the hair, making it more manageable and enhancing movement. Slithering can also create softness and increase the overall dimension of the haircut, giving it a more layered and natural appearance. This technique is particularly beneficial for thick or heavy hair, as it helps to remove excess weight while maintaining a full, voluminous look.

In contrast, increasing the weight of the hair would not be a goal of slithering, as this technique actually aims to reduce weight. Creating straight lines is more associated with blunt cuts or other techniques that focus on definition rather than texture. Achieving a uniform length is typically achieved through more rigid cutting techniques that ensure all strands are cut to the same length, which is not the intention of slithering. Therefore, the focus on texture and bulk removal makes option B the correct choice.