Has anyone used Nichicon BP-S aka BP.GB crossover caps?

I am restoring a crossover replacing a set of Callins CX electrolytic crossover capacitors in a set of EPI speakers. I am going to use Nichicon Muse bipolar capacitors and several people have mentioned the Muse ES bipolar caps. However, I see that Nichicon makes a crossover-specific capacitor called by some the BP.GB capacitor or the "BP-S" capacitor. I was wondering if anyone has test the BP-S capacitor vs an ES capacitor?