i agree for the most part, but i will also agree that that is a bold statment, too bold IMO.

i can take a divot with a driver off the deck and i can not leave a divot, (but nobody likes to divot with their driver so they hit it with a level or blow and take no divot) and i can take no divot with a 9i and still get 160 yrds, with a very high flight.

taking a divot or not is based essentially where your head is (if your swing is correct) if your head is over the ball or in front of it you should take a divot. if your head is behind the ball you are hitting on a acsending blow, which is fine if that is what you want, you can still get great compression and accuracy and distance and you will get a high flying ball too, if you hit it on the upswing.

the reason you move the ball up in your stance the higher the club you go is for that very reason, you don't want to divot with your 4i, you want a nice level pick off the ground most of the time. sometimes people divot with a 3i even, but usually the divots get smaller the higher club you go untill you hit a 3w, the average 3w takes no divot.

now hitting an ascending blow or level is not for the amatuer with a less than 250 yrd drive, becuase chances are if they can't hit that far they are not hitting the ball correctly and will end up swatting or flipping at the ball and that is the kind of ascending blow you don't want.