A Symmetrical Triangle needs to breakout at the 2/3 to 3/4 point of its triangle. If it runs all the way into the apex of the triangle it has lost its potential power and is like a firecracker that didn't below up but instead just shot fire out both ends. In other words price once running all the way into the apex of the triangle just meanders aimlessly without set direction after. So you do not ever want to see price run all the way into the apex as there is nothing but sideways whipsaw price action after.