GregG, here's the lockandroll video again. Have another look if you haven't seen it in a while. You can see all the elements I described above.
Note how the ball is farther away to his right and how he brings the hand down close and then swings out to the right and 'goes out to get the ball'. Notice how long the butt points at the ball.
Also look at his racquet flip back and down and behind the body, the ssc action and his contact made w/ a neutral wrist.
Listen closely to what he says which is basically everything mentioned in this thread.
Also note how he says "the racquet naturally
sprints forward', and 'without any effort
' and 'powerfully and effortlessly
So if you do this right that racquet moves by itself. You'll see.