I agree with both MDR and Cydisc. This video taught me the importance of using your wrist in the throw. I videotaped myself and compared it to Tommy Gill video and it just blew me away how little I used my wrist: it was all arm speed.
Cydisc, you are completely right in your statement. My motion is the exact same as you just stated.
MDR- I do not cock my wrist as much as shown on the video, but it did show me that I was not cocking my wrist in the slightest in my pull. It will be a work in progress to get a good balance going