I currently have a Brooks B17 standard on my road bike. I love it. I can ride all day and all night with no discomfort.
I had a bike fit recently, and the bike fitter's view was that the saddle was too wide. Certainly a pressure map of my posterior did seem to show that it wasn't evenly loaded, yet with a narrow saddle it was more even. I'm uncertain what to do for my 'new' bike (for which we are still waiting for the wheels). He wants me to get a plastic saddle, but I do love the comfort of my B17...
Do you have any experience of other Brooks leather saddles? In particular are the more racy ones any good for long-distance riding? I have a very relaxed and upright position on the bike, so don't want anything too racy, but am minded to observe the fitter's advice and try something a bit narrower.