Typical Delta shtick with this zone business, SM remains a joke.

I have though found the best-kept-not-so-secret way to maintain super-priority boarding. Keep on having babies. We've had a child 3 or under for the last 10 years and just walk right on, before SkyPriority, first-class, and even god himself. Nothing more satisfying that elbowing right past those snotty GM and above gate lice and seeing their angry looks. Of course the private school tuition will one day do me in, but thats another story.