It sounds as if a lot of people are in the same position I am with thinking of ordering a new "Custom Spector". I was wondering if anyone can say with any accuracy if the ReBop and the Bolt on NS4-H have the similar / exact same size? The reason I ask, is I've gotten really fond of my ReBop's neck, but I want more options than what the ReBop offers. That's my main reasoning for looking into the US build. I was really hoping the necks are the same, since they're coming from the same factory.
One thing of note, the string spacing is slightly wider at the bridge on the USA bolt on, which is probably due to the Hipshot bridge. The Rebop is .75" at the bridge and the USA bass is .822" on the 4 string. Nut width is the same, I'm personally leaning toward the NS4H2 with DC pickups, this way I can swap out the EMG 35DC for EMG P or J pickups in the same size housing if I want to experiment with different pickup options.