Has moved on to a new swing (Elbow to Elbow). As before with NG, I believe he still teaches LPG but believes his new swing is better. JK has a site
but it's not obvious where you'd find LPG information there.
JK's web site is a 'members only' site and he has thrown out at least one member for discussing LPG here so there is not a lot of discussion of LPG here. It seems JK likes keeping control of his message even if it means punishing those that speak about it in public.
While JK is not longer active there, you can see the archives of Ask The Professor
at the SciGolf site for information without charge.