They only had 5 zones this weekend, I observed on my first flight, and waiting to go standby on an earlier flight. They also said they don't work the standby list until everyone has boarded, then they do a seat count. I guess the computer isn't as smart as UAs.

Here was the order for both flights.

1. People with children or who need extra time.
2. First Class and Chairmans Elite members.
3. Zone 1 *G and US Gold, Plat and Chairmans.
4. Zone 2 *S, US Silver Elite, US Credit Card Holders.
5. Zone 3-5 WILMA.

I also forgot to mention the mid-flight sales pitch for their US Airways credit card, the guy talked about it so long I assume he gets a commission. Then they walked up and down the aisles trying to get people to sign up.