I have also been hit by the wait-list wave. I got wait-listed at Columbia, Georgetown, and UCLA all this week. I applied mid-December so it might be the large amount of applications.
I would like to add to the suggestions above. I also had a 15 point PT BR gap and it was extremely frustrating. What closed my gap from 15 points to 5 points was warming up before every PT and on the test day. There are plenty of warm up strategies …