Keep an eye on how your schedule and duration change. You still might see a big change in the intervals when changing the AW from 0.07 to 0.21. If you see that in your schedule change and are concerned you can consider taking a step to 0.12 or so. If that goes well move it up after a bit until you get to 0.21, or a lower value if that ends up being where your lawn is happy.
