The blinds are slowly but surely catching up to the field. An average stack provides nearly 37 big blinds at this point, which means that many players are well below that mark and beginning to feel the pressure.
Now that this flight is only 25 eliminations away from the end of play, each decision is taking on greater and greater importance. The players are taking their time to consider all possibilities before putting chips in the middle.
Here is a look at the action from level 15: