Great basses start with great wood. This is some Mango from Maui to make a body.
Here's a close-up of an unfinished neck after the glue residue and differences in lamination heights have been planed off. I used Jatoba in the center for strength and stiffness, then added Peruvian Walnut and Maple for contrast, and African Mahoghany on the edges.
A rough-finished neck and unfinished Sapele Mahoghany body pieces.
Before it becomes a neck, it starts out by being a few thin slices of wood. Most of my necks have Jatoba in them because of its extraordinary stiffness and stability. This one is typical, using Jatoba as the thickest lamination in the center.