All six options offer between 0 and 36 hours off duty reset time. This is insufficient. A truck driver who is at home for just two days will have a crowded enough agenda, spending time with his family, looking after banking and bills, taking care of the home, trying to spend time also with friends and relatives, etc. To crowd an entire life into a single day per week makes it very unlikely that a truck driver will get either enough sleep or restful-enough sleep. In fact, some may choose one night s sleep and two days off.
Truck drivers are often away from home more than most employees.
Truck drivers wield dangerous machinery at high speeds up to 13 hours per day. Truck drivers, unlike other employees wielding dangerous machinery, operate on shared infrastructure with the public. None of the six proposals has a sufficient regulated reset time. The Base Proposal would have a sufficient calculated reset time for those drivers on duty the maximum daily allowable time in a given week. Such a loophole would be a mistake.