From another post in the Emergency Room - Hitters section (thread title is Max hitting distances I think) :
Originally Posted by YodasLuke
Would you identify your component variations for component #1 through #9?
Sure...
1. 10-1-A, Overlapping
2. 10-2-B, Strong single action
3. 10-3-A, Punch
4. 10-4-D, Four Barrel
5. 10-5-B, Square-Open
6. 10-6-B, Turned Shoulder
7. 10-7-A, Zero or No Shift
8. 10-8-B, Special
9. 10-9-B, Impact
When I practice, there are times that my left hand will revert to my original turned position. If and when the left hand gets turned and I want to leave it that way, I simply focus on keeping the left arm flying wedge in tact. In other words, the more turned the left hand becomes, it equates to a left wrist bend at the top. This is reason for quotation marks around "flat" when he describes the "flat" left wrist as an imperative. It should be a flat left wrist or it's equivalent. When you truly understand the orientation of the flying wedges, this puzzle starts coming together. 10-2-B is the suggested grip for both hitting and swinging. If you vary, you simply need to know the implications. Once you master a pattern, changing a component is possible without the stroke going to hades in a handbasket.