Major bump but clarity was needed...
Per 61.1: Both Aeronautical Experience and Flight time are defined using "pilot time". Pilot time is time when a person either; 1)acts as a required crew member (per type certificate), 2)gives or receives training, or 3)is an SIC per 135.99(c). If it is not pilot-time then it is passenger-time.
After logging Passenger time as "total-time" you will look pretty stupid when you have to back-peddle your resume by saying you have experience but not aeronautical experience and total time that isn't flight-time or pilot-time
To say that "total-time" is not defined seem like an attempt to use the vagueness doctrine. The doctrine requires that something be so vague that a person "exercising common sense could not sufficiently understand and fulfill its prescription." It is clear to any reasonable person that "total-time" is not a sub category but rather a sum of sub categories. To add numbers or value to the total-time column without a sub column entry is just cooking the books.
The co-mingling of what is technically passenger-time with your actual pilot-time was addressed back in 1984 in Cassis v. Helms. In this case the appellant had enough valid hours for his ATP but he also had padded his log book with an additional 150 hours to "enhance his employment prospects". He tried to claim the false entries were irrelevant since he had enough valid hours. The Board however felt that...
"the false entries were material because if left intact, they could be used by the appellant to show compliance with other FAA requirements beyond those needed for the ATP certificate. Since the logbook in question is a permanent and cumulative record of the appellant's flight experience, it may be consulted when Cassis seeks to demonstrate compliance with other FAA flight experience requirements. The FAA, of course, is charged with promoting aviation safety. See 49 U.S.C. § 1421(a). The FAA cannot meet this responsibility unless pilot logbooks are free of knowing misrepresentations of fact". -- Cassis v. Helms, 737 F.2d 545, 547 (6th Cir. 1984)
The logging of 150 hrs worth of false entries (that he didn't even need) cost him his license for a year plus the attorney fees for a trial and an appeal..all in federal court. After the year do you suppose he had any luck finding a job?
Before you risk your career, remember the FAA has two catch all phrases (that the FAA gets to define at will) that will always trump your clever interpretations of the regulations... "careless and reckless" and "in a manner acceptable to the administrator".