Adding lag to swing has made my swing incredibly steep. Help.

I think casting is a problem that afects 99% of golfers, maybe even higher. Rarely does the average player exhibit anything close to tour quality lag. I'm recently trying to get some lag in my swing, and went to the range yesterday working only on 1/2 and 3/4 shots.

Here's a picture of my 'old' vs 'new' (with some lag and less casting) swing.

Old swing left, new swing right. Video at the end for reference. Orange is the clubhead during the backswing, and green is the clubhead during the downswing. You can clearly see the cast vs the lag.

However, when you look at the two green swing arcs... the one on the left is a much more wide sweeping arc. Naturally it will come to the ball not as steep. On the right, the release point of the clubhead is much later... so naturally the clubhead is going to come into the ball much steeper.

At the range on my 1/2 and 3/4 shots I was taking massive divots. Huge pork chops after the ball. My clubhead was caked in mud every shot. Can anyone out there with lag in their swing tell me what they do to 'combat' the extra steep angle coming into the ball. It's such a change for me since I'm so used to casting and coming in not so steep.

Video for reference:

yup I hear ya.  I think that is a very difficult move for the weekend player to get.  If you hold the angle thru transition and keep the clubhead outside your hands you are set up for a very steep down ward swing UNLESS you some how "flatten" it out. (think Boo Weekly or Graeme McDowel)  When I'm playing well I can hold the angle and I feel my trailing elbow as if it's pushing away from my body towards the ball while I try to hold my wrists and hands locked.  To me holding the angle is more important than coming in too steep...at worst I hit a weak fade or pull fade, much better than loseing the angle (or lag) and top or fatty it.  At least I'm not in major trouble.  Let us know if you figure it out.