Not everybody finds bliss and comfort on a Brooks saddle (of any model). So my suggestion is to get the less expensive B17, ride it for a few months, and see how you (and your derriere) feel. Sore? Adjust the fit, and try again. Still sore? Maybe you are not a Brooks kind of person. It's comfy? Then ask yourself how you doing on those rough patches. Too bumpy? Upgrade to the Flyer, and try for awhile. Keep your B17 in case you ever need a replacement saddle. (I have gone through five or six saddles during the past twenty-five years.) After awhile, reassess. Do you notice a difference between the two? If yes, pick the one you like the most.

The received wisdom is that to take weeks (or months) to break-in a Brooks saddle. I would like to report that it took me just a few days with two different B17s on two different bikes. And even during the break-in period, it wasn't uncomfortable.