Amen... There is no reasoning behind using it as a base. Most people just like test, so they use it every cycle. There is no science that says it has to be there. On a side note, I've been cycling for 15 years, and have never gone over 700 mg. of test. Usually stay at 500. Some people are out of control with thier doses nowadays, and worst of all, they get on this board and recommend the same shit to others.