We have also aerated the collars around the greens. With our new strategy of blowing the sand into the holes vs. dragging the sand we end up with a lot of sand on the edges of the greens. With the holes in the collar, the extra sand now has a home to go to.
If you want to see what they will be like two weeks later, come check out the practice greens. They have responded wonderfully and they are rolling well.