Increasing the effectiveness of a technique by changing the angle of its application.
Angles are everything in jiu-jitsu. By merely changing the angle of any technique, you can increase (or decrease) its: leverage, control, base, tightness, and more. Oftentimes when you learn a specific technique, you learn it from a single angle, such that when the angle changes in real-life application, the technique no longer works. Upon adopting the Pivot Principle, you will have the ability to explore angle-change opportunities more naturally and with greater frequency so that your techniques remain effective, even when your opponent does something other than that which you specifically trained for.