Cracker jack research? Not sure if you're "slammin" me but this is what I found.
Cee Baileys and Clearview use different ways to measure their shields. I think the Clearview method is more accurate. So, using that method the 11" Cee Baileys is actually 13". This makes the small Clearview 1" higher at it's lowest setting. You can use the adjustment slots to gain another 3/4". The recurve at the top is supposed to add another 2" to the lift of the airflow.
I'm 5'8" and can easily see over the top of both of them.