S.B.G.I is the most evolved and functional JKD out there to date, we are not tring to hurt JKD but improve it, by bring back the functionality that Lee himself had, if he were alive today he'd be the biggest supporter of mma and S.B.G.I.
Asking that a technique be proven effective is a good thing it is the only way a theory becomes useful
Lee: "when what is, hits back"