I never ground the club behind the ball, I hover it just above the grass.
The reason for this is to ensure the club does not bottom out too early, I never want the leading edge to be striking the ground before the ball. By positioning it slightly above the ground I promote a nice crisp downward blow into the ball with mid - short
irons that leaves a shallow divot just forward of ball centre and encourages the ball to be pinched into the ground. I do the same with longer
clubs but with a wider right foot stance that brings the arc low point back a little to promote less compression.
Anyone have an opinion or contrary view?