[12 piece bucket]

Another disadvantage (from Johnny Miller): With a strong left hand grip, the clubface can be square to the target with varying amounts of clubshaft lean. Distance control may be more difficult. With a weak left hand grip (one knuckle / flat left wrist), the clubface will be left open if there is too much forward lean, which promotes (for accomplished players anyway) hitting the ball with the same loft every time, better for distance control.

I think you have touched on somethings here that are EXTREMELY important. However there are some items that I think are not quite correct or maybe should be further hashed out.

So let's forget about grip for a second as far as how you put your hands on the club.

1. I'm not sure how accurate people are at "aiming" the face at a target that is 150 to 250 yards away. That being said . . . people align the face in a "general" direction. Trevino had the face looking left . . . Jack had the face looking right.

2. What does shaft lean do? It makes the face vector point right AND delofts the club. It also has path implications . . . . the path vector would generally be more right allowing you to attack the inside portion of the ball. And generally the angle of attack is steeper as well. All of these have implications. Shaft lean works well for lofted clubs because you can hit the far and still hit them up because there is stil some loft there even when you cheat it with the shaft lean. However with the less lofted clubs too much lean becomes an issue as far as loft and distance go. So you want to have the CORRECT amount of lean . . . regardless of grip type. You can have a 10-2-B grip but if you set up with lotsa lean then you've effectively made it "strong". If you watch the pros . . . .generally they flight the lofted clubs low to control distance which is a shaft lean deal. So I'm not sure it's a bad thing as far as distance control goes with the short stuff anyhow.

3. People generally set up with or program into their swing a certain amount of shaft lean. If you set up with the face looking left and with some lean in the shaft, you'd better get that amount of shaft lean or the ball is going to start left of your intended line. Shaft lean is a big solid piece and it's also a big piece getting the ball to start on the intended line . . . at least if you are trying to draw it.

4. Plane Angle/handle height also is a grip deal. Generally if you have the handle lower (elbow to hands only) your grip is going to go on there pretty "strongish". If you set it up on the Turned Shoulder Plane then it will tend to be B-ish. So things get complicated when you set up for a plane angle and then have an "unintended" shift that can mess up the face vector and the rate that the face closes. . . . e.g. raise the handle up thru the ball face vector goes right but the face can rotate around the sweetspot faster too.

Somewhat complicated stuff.