You get a sense of control with entry signals because the point at which you choose to enter the market is the point at which the market is doing exactly what you want it to do. As a result, you feel like you have some control, not just over your entry, but over the market. Unfortunately once you are in a position in the market, the market is going to do whatever it wants to do-you no longer have any control over anything except your exits.

– Van Tharp, Trade Your Way to Financial Freedom