re: Hot Shot driving

this may or may not help. I work for an O&G Derrick barge company in Houma. We got shot parts and equipment pretty regularly to the docks. We also use acme hot shots when we need to get personnel to or from the dock outside of crew change. Also we use acme for crew changes (15-25 people)
I asked a driver how his schedule was and he said that him and a list of drivers rotated calls/jobs. It could be 1 day before it's his turn again or 1-2 weeks. it all depends on how busy they are. when it gets close to his turn again its similar to being on call, he said.