[Weightshift]

I suspect his left hand grip needs to be adjusted a bit, too much in the palm, heel pad not on top. Without that change he can't get any more delay than he has now. (noted in other thread re: his sequence)

Are you referring to:

The key I feel to my stroke, inorder not to have throwaway is to aggressively use my extensor action...constantly pushing downwards hard with my right arm towards the plane line through 'pp3' (instead of pp1) to maintain a flat left wrist. It is also this factor I believe that causes my gradual release. I very much concentrate on the active pressure of the extensor action through pp3 'downwards' towards the plane line. Like your holding a knife in the right hand keep stabbing the pressure downwards with pp3. The right forearm is very active with its extensor action....