I've had good luck with another non-Brooks alternative, the Serfas RX saddle. Like the Terry saddles, it has a cut out section. Serfas makes several of these model saddles, some are too wide, more like a 'comfort bike' saddle. The one I have is narrower, I think they call it the 'performance' model now.
Before I got my first one of these saddles I had considerable pain after 50 miles which got very challenging above 70 miles. My first ride on this saddle was magical. I remember the distance- 82 miles, because I was so astounded that I had experienced no pain at all, actually zero.
I appreciate the love that Brooks owners have for their saddles. For me, the ability to leave this saddle in the rain, zero maintenance, and especially the zero break-in time made it a better choice.