I think the confusion arises because short irons are normally played further back in the stance and struck with more forward lean and/or more descending blow, which all would require you to swing MORE to the left. However, all things being equal on ball position, angle of descent, etc, the more vertical shaft would require less aiming to the left as explainded in the preceding post. As a practical matter, however, this effect is more than offset by the ball position and angle of descent.
