When cutting with a vertical or diagonal cutting line, what technique helps maintain control of the subsection?

The palm-to-palm technique is particularly effective when cutting with vertical or diagonal lines because it allows the stylist to maintain a secure grip on the hair while keeping the subsection stable. This technique involves holding the scissors or shears with the palms facing each other, which can provide better control and precision during the cutting process.

This method allows for a more natural arm and wrist position, enabling the stylist to work confidently with the hair, especially when creating softer, more textured cuts typical of vertical and diagonal lines. It also minimizes the risk of the haircut becoming uneven, as the stylist can clearly see and direct the line of the cut more accurately.

Other techniques, such as cutting below or over the fingers, do not offer the same level of stability or control as palm-to-palm. Using a razor is a different method focused on texturizing and may not provide the control needed for maintaining the integrity of the subsection in vertical or diagonal cuts. Hence, the palm-to-palm technique is the best choice for this scenario.