I reviewed the "Standard" Brooks B.17 for Cyclingnews many, many moons ago.
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I've owned a bunch of Brooks saddles since then, and I've found that while there is a lot of mystique and tradition around breaking in a leather saddle there really isn't a "best" way to do it. Proof of this is the fact that Brooks really doesn't tell you how to do it; they don't give you much in the way of instructions on how to use Proofide.
For the record, my personal method is to put on a coating of Proofide top and bottom, let sit overnight, and then ride the crap out of it. I'm a good 200 lbs. so my weight tends to speed up the break in process. I would hesitate to recommend to a first-time Brooks owner to intentionally get the leather wet to speed up the softening process - screw it up and you can ruin a leather saddle. Actually, I think that the need for a "breaking in" period is mostly mental - a saddle's shape is a waaaay more important element in overall comfort than the softness or cushion provided by the leather. I have a totally rock hard Brooks Swift that is very comfortable because its shape matches my a$$. Ditto my favorite Team Pro.
If I were in Norway for the winter, I would slap it on the trainer and break it in that way. The important thing (in my opinion) is to have your sit bones situated on the saddle in the same place where they will be on your touring bike. If your set up is somewhat similar, you should be good to go.