OK, now this thread is turning into a diary. Went out the range again because I was totally unsatisfied with my last session. Screw the bent over posture idea, at least one as signficant as before. Just stick the butt out slightly more and get in a comfortable position. My other thought, hold the shaft off from going inside so much. I start hitting the 7 iron and make solid contact. The main problem at first though is that I am pulling the ball a bit. Some straighter shots but too many pulls, solid hits though. Then I start hitting 2 inches behind the ball every third or fourth shot. One beautiful solid shot then two shots later: THUNK!

Went to the driver and hitting solid but spraying it a bit. Then I thought tee it up a bit lower and stop getting cheated on your shoulder turn. So I make sure I get a full shoulder turn and everything seems to straighten out. Solid and straight for the most part. Now go back to the 7 iron.

Same concept, still holding the club off from going inside too much but also make that good shoulder turn. I am hitting some good shots when suddenly THUNK! I hit behind the ball three or four times in a row. Cursing, slamming club, throwing club. I try another swing and noticed that my left knee was flopping to the rear on the backswing. So I solidify my base and keep enough tension on my front knee to keep if from turning in. I get a full shoulder turn like before and wham, I hit a good solid shot. Did about six solid shots in a row and no pulling the ball. So I think before I am doing a false shoulder turn by collapsing the left knee and putting a little reverse pivot in the swing. This moved the low point of my swing back and therefore the chunked shots.

So this posture thing is not nearly as important as I thought. I put way too much emphasis on it. Just get a comfortable posture and put the left arm parallel and on that shoulder plane in the backswing. I am going to work more on soldifying my base and getting a full shoulder turn.