Michael Fooks wrote:
this seems like a paradox to me?
Why? Intention strength has to do with mentally-controlled force vectors, not normal strength. If you tense up and try to use muscle, you don't ever develop the intention (kokyu) strength. So you don't use muscle, but you have to mentally focus to learn to bring the force-vector strength to where you want it... and you have to learn how.
Ask Rob. He's begun using it in BJJ.