Majuki, everyone was funneled into the WBI. The usual premium station to the extreme right was closed. To show how well designed these contraptions are, two very tall guys left a portion of themselves "unscreened." Once they entered the "I surrender" position, their arms were above the scan area. I doubt anything above their elbow up imaged.
I did opt out and went with the pat down. Still, I had to remove everything after passing through the WTMD. A real pain but worth it if it means bypassing the WBI. The items that usually stay in my pocket such wallet and BP had to come out. Wearing a pair of pants I wore for a couple hours yesterday, I had a few of pieces of paper in my back pocket. Didn't get much fuss when discovered considering they were programs for a Sunday church service. Of course papers in your pocket used to be a non-issue.