Chris McNamara has climbed over 100 big walls and El Cap 70 times. He attempt to pass to you, the reader, a great deal of what he has learned in the last 15 years, about technique, equipment, choice of partner and timing. With all this information a climber with 5.9 skills and in good physical shape may find the effort more enjoyable, safer and depleted of some of the unecessary hard work.