One thing I noticed is that since they extended their app. deadline from Feb. 1 to March 1, their ostensible reason for deferring people until Feb. 15 evaporated. If they wanted to take a look at deferred apps in light on the entire pool, then a decision would have to be made after March 1. That's why, I think, at least some of the waitlists have been given out...since their deadlines changed and they didn't want to renege on the Feb 15 timeline for a decision, they waitlisted people until the new, later deadline passes and they can reassess in light of the entire pool, as originally planned.
Also, if you've seen past years' GULC WL threads, they seem to have 2 different kinds of Preferred WLs...one with a specific contact person (viewed as more favorable) and another with only general information. And then, of course, the general WL.
I got the normal PWL...let's see if anyone has the "Preferred-Preferred" type this year.