The former can become quite complex and requires over-cutting where the fingers and miter angle intersect which creates voids, while the latter has voids designed in, but which has the noted advantages of increasing long-grain glue surface, and greatly simplifying the geometry, reducing the number of tools needed. With a rabbeted lid and bottom, it is still possible to have a fully mitered appearance, preserving the visible diagonal if one simply shortens where the box joints are cut, and adds in the successive V endmill cutting necessary to cut visible miter. Note that this may create a fragile cross-grain element which will require care in cutting, and post-processing.