No Delay was killed by sony in late 2007. A few months of monk/rogue bug here and there, certain attacks could be increased in speed to do lots of damage. The last rogue bug this spring official killed GK in all forms.
The mechanism that allowed primary and secondary attacks has been eliminated.
So GK ND is officially dead, RIP, Hasta la vista baby and any one who says they have a working gk are LYING to you.