I don't know how you have the Vibes close to the Black Widows in terms of shape. Statement Pearl is also a bigger ball than the Widows. Would be a nice attractive ball to have though.
I'm comparing them in terms of performance for the core/cover combo. Gas Mask core with a pearl cover would be great, as long as they figured out a way to deal with the over/under that you could get from it, especially if used in the transition. That is where people started to struggle with the BWG. Even if it made it over here, the BW Platinum wouldn't have helped much because it went even longer than the BWG. This The BW Pink makes up for that and looks to handle that transition better.
Now, comparing that to the performance of the core/cover combo you get with the Vibe, dozens either way. I just don't see how unless you have two completely different sets of arsenals, that you could work in a BW Pearl (of any variant) with a Statement Pearl in the same lineup. How would you work through the overlap?
BL.