I flew out of BOS earlier today and immediately noticed about 15 or so people in line at the pre-check xray which I thought was strange. I usually fly through Pre-check at Logan and have never had more than 2 people in front of me in at least a dozen experiences at Logan over the last few months. Heard the TSA agent mention something about a "pilot program" but didn't catch all of it. One woman with LOTS of jewelry, including ornate rap-around "snakes" on both ankles, definitely slowed things down. My 30-second experience was slowed down to about 5 minutes. I'll live.