Hopkins
Commercial User
In a solid body bass, the body wood's primary responsibility is to be rigid. Secondly, it needs to look good. Beyond that is conjecture and, in my opinion, should be taken with a few truckloads of salt.
The grain orientation on the body....honestly, i don't think it matters one drop. As long as the wood is strong, stiff, and hard enough (giggity) to keep the attached screws (bridge, strap pins, pickups, etc) from ripping out, I don't think you have much to worry about.
Mahogany works fine as a bass neck. Laminating the neck will add strength, as long as the glue joint is tight and the laminate wood is string...which is a good thing. Maple is very popular because it is hard, stiff, abundantly available, and cheap. Mahogany is not as popular because it is slightly less stiff, and a lot more expensive. It is still a fine neck wood.
As fretboards go....ebony is always nice.
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