What type of shafts typically require butt trimming during customization?

Butt trimming is primarily associated with parallel tip shafts during customization. Parallel tip shafts have a consistent diameter along their tip portion, allowing for adjustments to be made by cutting from the butt end without affecting the overall performance characteristics of the shaft. This type of trimming allows for modifications in length to better fit a golfer’s height, stance, or swing style, which can enhance control and accuracy.

In contrast, step-tip shafts are designed with varying diameters in the tip section, which makes butt trimming less effective and more complicated, as it could alter the performance characteristics that the step design provides. Hybrid shafts often combine elements of both wood and iron shafts, and while they may sometimes require trimming, they do not typically fall into the category where butt trimming is a primary practice. Graphite shafts, while they can also be trimmed, are more commonly tailored based on performance needs rather than length adjustments via butt trimming.

Understanding that parallel tip shafts are the standard requiring this type of customization is key for club fitters looking to adapt equipment to better suit golfers' preferences and play styles.