The trick is trying to maintain this "Pyramid-base" while in motion.
Along with base, the other two qualities are also important.
2.Mobility---comes in two flavors, mental and physical. You should not be mentally stuck on trying to apply one move or you may miss the better opportunity that the opponent gives you; then the body must be willing to follow the mind.
3.Fosused-calm---if you get too excited, you may lose your base and your mobility, not to mention your stamina. Let your opponent waste as much energy as possible while you relax and breath.
Jiu-Jitsu is not about matching strength against strength, it's about being suptle and gentle. Always remember that force does not exist until it meets resistance; offer no resistance, and you disarm your opponent if he is using force.
I am sure that there are many other principles in JJ besides these three, so tell me, what are y'all thinking out there?
P.S. Joe, has the Renzo seminar happened yet?