For the most part you will airline to CVG or LAX (sometimes another station... HKG/BAH/LEJ, etc). You could sit reserve at home before an assigned trip, on the road in the middle of a trip, or at the end of a trip before being sent home. Once home, the rest requirements generally make you untouchable for a few days or week or more. Southern rarely has enough pilots for pure reserve. Most of the time they will grab you for something. Don’t count on bidding a reserve line and sitting at home all month. It won’t happen.