Usually, the drop at heel in relation to the drop at comb is:

In woodworking, particularly when discussing the design and function of various tools and furniture pieces, the concept of "drop at heel" and "drop at comb" refers to the measurements that can affect both the usability and aesthetics of the item.

The drop at heel typically refers to the measurement from the topmost point of the item, often where the user applies pressure or interacts with the tool, to the back or heel section. On the other hand, the drop at comb refers to a similar measurement, but specifically at the front or comb area, which can greatly influence handling and balance.

The reason the correct answer indicates that the drop at heel is slightly more than the drop at comb relates to the design requirements for stability and ergonomics. A more pronounced drop at the heel ensures that the tool or furniture piece maintains a better center of gravity, providing more control and stability during use. This design helps in redirecting forces effectively, ensuring that the user has a more grounded and secure feel.

Other variations in the relationship between the drops might create challenges in stability or lead to discomfort during use, which is why the slight increase at the heel is considered the most efficient approach in design principles, ensuring optimal performance.