Check out baseball glove wax/conditioner. It comes in a small tub like Proofide. Probably bees wax with other leather additives like vitamin E. I see them at sporting goods for about $4. The quickest way to break in a Brooks is to sweat like crazy at the point of contact. You could also sandwich a wet towel between your butt and the saddle. Let the saddle dry overnight.

+1. I don't treat my saddle any differently than my leather shoes, racing leathers, leather jackets, leather luggage etc. I treat them with conditioner and leather polish but I also let them get wet. My B17 really started breaking in well after repeated soakings while riding in the rain.

My brand new $30 Flyer (B17 with spring) is showing four nice dimples on top. It's about 35% softer now after 200 miles of riding at an average stop/go speed of 15 mph. No wet rag. Just a light coat of glove oil on top, and another layer at the bottom out of the box.