210....The Brooks have a metal frame around the edges, effectively making the sitting width about 10-20mm narrower than the max width of the saddle.
Now, as for the springs? There are women here who swear by them. I put my big old B68 on my road bike so no springs for me, but if I were buying for my hybrid, I think the springs would not only be nice, but look pretty cool. But, that is just opinion.