I just picked up a 99 Thumb 5 BO and its awesome, but it neck dives pretty good. I've noticed on Spectors and on some Warwicks that the back strap button is higher on the bass rather than centered. Is there a benefit there? Any help would be greatly appreciated.
Yes. Lighter tuners can help and a grippy suede strap can help to reduce it as well. You can also try extending the upper strap button.
I own a Thumb BO 6. I wear all my basses high, so neckdive is rarely an issue for me. Pick up a wide strap (Levy's or similar style) to evenly distribute the bass's weight on your shoulder. Choose one that has a rough-swede backing as Epitaph04 suggested.
Sleevey55, I definitely recommend a high-quality, wide strap for your Warwick! It will help balance the weight and posture of the bass, while also providing comfort and help adjusting to the weight. Please let me know if you have any further questions here, or in a private message Best, Mike Warwick USA