Hondo,
You didn't say which unit you were planning on hunting or at what elevation you will be, which can make a lot of difference. The biggest thing to deal with will be the weather. 2nd season can be a boom or bust depending on where you are at and depending on the weather. Another thing to note is the moon phase. The full moon will be on the 19th, right in the middle of 2nd season, so it will be bright the entire time (unless there is a lot of cloud cover). In my experience I always see less game under a bright moon vs a darker moon. Not to say that you cannot find or harvest elk under a full moon, again it depends on the weather, but if there is also a lot of pressure (the elk have already been facing increasing pressure since the first of Sept) then they tend to move at night and hide in the thick stuff during the day. Make sure you are in position at very first light, and again at last light, I like to sit on meadows or saddles to catch elk as they move through. Hunting the thick stuff will just push the elk out for someone else to get a shot at them. To answer your original question, the big herd bulls will still be with their cows, and the satellite bulls will be alone or with other smaller bulls in bachelor groups.