The Brooks B72 began very hard and the sit bones could be supported by any part of the saddle's flat surface with equal support. As the saddle broke in it became increasingly painful to sit on the large face of the saddle that creates the hammock effect of each sit bone, protruding the center of the saddle against the middle penile area that should obviously be avoided. Riding like this for only 8 miles has given me excruciating pain in the groin area for 3 days. The only comfortable way of sitting on the saddle was to sit on the rear frame on top of the rivets, which is the method I used for three 20 mile commutes. This position proved mildly comfortable but knowingly it was the improper way of using the saddle.
Knowing that resting the sit bones on the top of the saddle is not quite comfortable, and sitting on the flat area that is supposed to support the weight causes much discomfort, I cannot help but think I am doing something wrong since so many people have found this saddle model (including the B66, B67) a life saving comfort item. I sit in an almost bolt upright position with most of my 155 pounds on the saddle. I am about to sell the saddle and try a flyer; I've heard they do not sag as much.