Going for the "Best Bass For Metal" award, ain'tcha Max?
And if we're bandying around ideas for our own custom jobs, then I'll bite. Having put together two parts-basses and explored a handful of personal criteria, mine would definitely have the following;
- Jazz body (I'm a bit of a "tone-wood skeptic", so I'm not too picky. As long as it's on the lighter side, all is good.)
- Rosewood fretboard on a '70s-style Jazz neck (1.5" nut width, curvier 7.25" fretboard radius, a little thicker front-to-back)
- Babicz full-contact bridge (Such a cool-lookin' invention!)
- Hipshot Drop-D tuner
- Santellan Sounds series/parallel tone control wiring harness (Seriously! Link Removed Neat stuff!!)
- Matched, painted headstock!!
The last thing would be two different pickguards and some very specific routing underneath it. And I'm not talking about color or style of the guard either. I mean,
one guard would be cut for a Precision pickup in the classic "sweet spot" and the other for a Jazz pickup. The routing would allow for one or the other to be installed at my whim, while the pickguard would cover up the additional routing. It would also have the extra benefit of shaving off an ounce or two of body-weight.
As far as color goes, I'm leaning towards a metallic pewter, same as the first bass I ever wanted to own, a Squier Standard P-Bass Special.

The only difference would be a glossy-but-tough polyurethane coating, unlike the satin treatment the original has.