I hear you.
I have to admit that being a "Spector purist" and loving the growly sound of the 1980's NS-2s... the BEM models are different. Punchy, with a slightly... I don't know... a tone that's more mid to high instead of the bone-crunching lows you get with the pau-ferro.
So for me... I say that I'm glad I've got The Black Pearl. It's a really amazing bass. But regarding the "purist 1980's" sound, it'll be the only BEM Spector NS-2 I get.
I think I'm going to stick with the Pau Ferro for the NS-2 and NS-4. But am totally open to the maple option on the ReBop and the USA Bolt-On models. I think that fingerboard works great with the bolt-on necks.
Yes

Lol