all the above serves as an accurate description.
there are also odd anomalies with trips that have a shuttle attached, such as the Nassau/Grand Cayman trip; as instead of flying back to London when the next crew arrives, we would operate a turnaround trip to Cayman and stay another couple of nights in the Bahamas - thus creating quite a long trip, sometimes up to a week. As you can imagine, these trips were highly sought after via our crew bidding system