Originally Posted by
channa
CO has the most professional men and women in the industry, QUOTE]
+1.
Actually this may be to line up with UA's newest procedures. At UA sterile cockpit is at 18,000 feet.
It looks like UA is going to 10k feet for sterile cockpit starting today. See posts in the 70s and later here:
http://www.flyertalk.com/forum/unite...cedures-2.html
Don't know how this relates to CO right now, but alignment will likely be coming.