And a few general tips after many years of riding many Brooks saddles ... (at least one of which you've already discovered ... the saddle is hard.

)
1. When you take your Brooks of the box, your first thought might be something along the lines of, "This thing is a rock!" Yes, your Brooks saddle is hard. It's supposed to be hard, and that's OK. A hard saddle supports your sitbones and helps to prevent riding on your 'middle bits'.
2. Your Brooks saddle should never become soft. Your Brooks saddle will remain hard for years and years and years to come. Your goal is not to strive to make it soft. If it becomes soft, it is badly damaged. It will, however, start to conform to your shape. It will become customised to you.
3. You may get a small spanner with your Brooks saddle. Put it in a safe place, a place you'll remember several years from now when you might need to use it. Resist the temptation to loosen the tension on the saddle off so it will "break in" or become soft because your Brooks should never become soft, and you will regret this method of breaking in your saddle. Several years from now you may want to give it a quarter turn to tighten it a little tiny bit because it has become a little bit too loose and you're sitting on the rails.
4. You may read about various methods to "break in" or soften your Brooks. Ignore them. The best method is to ride the saddle ... lots. Your saddle will not become soft by riding it, but it will break in ... start to conform to your shape. (There are two other methods which will work if your saddle has not broken in by about the 1000 km point)
5. When you install the saddle, tilt the nose of the saddle up a little bit. The angle of the tilt will depend on your personal preference. Some like quite a pronounced tilt, others just a little bit of an upward tilt. The upward tilt of the nose of the saddle forces you to sit back on your sitbones, and makes the saddle more comfortable.
6. When you first get on your new Brooks and ride, you'll notice it is very slippery. You may feel like you are sliding around all over the place. That's normal and will go away after a few rides ... and that will be the first part of the break-in process.