Furyk's grip encourages a 'solid' left side through the ball, no breakdown. Alex Morrison's grip would be the extreme of this, and Ben's is closer to it, than to Hogan's, from what I see on his tape.
I think many/most folks should begin by learning Alex Morrison's grip (John Daily), to really understand the firm left side, working with left arm only chips and pitches and downward contact/divots. In TGM, this is closest to 10-2-D. For me, I find interlocking much more comfortable using 10-2-D, and overlap when using 10-2-B, because it gives me a much better feel of 'square' palms facing each other. In 10-2-D, the interlock gives a better feel of '90 degrees'. It also allows the left thumb to fit in 'the pocket' of the right palm better.
If you were standing perpendicular with a wall next to you on your left and wanted to hit it with your left hand, would you use the back of your hand, or the butt of your hand? The trade off, the back of the hand is more precise, the butt of the hand more powerful.
