No, I'm not agreeing with you. I said I agree that a non-revenue leg can be flown Part 91. I'm talking about the original scenario I presented:
So it's your belief that charter companies DO charge for the leg to position the aircraft to pick up the customer, but DO NOT charge for the leg to position back to base after dropping the customer off - they do that leg for free?
Try not to let your limited understanding of the business based on flying auto parts get in the way of understanding the bulk of the charter world (freight and passenger) where the plane is expected to end up back at it's original base.
A data point for you. Remember the Gulfstream that crashed on it's way to pick up George Bush Sr? I assume we can agree that was a charter flight and the aircraft was being run empty to pick up the ex-Pres? Here's how the NTSB categorised it:
NTSB Identification: DCA05MA011.
The docket is stored in the Docket Management System (DMS). Please contact Records Management Division
14 CFR Part 91: General Aviation
Accident occurred Monday, November 22, 2004 in Houston, TX
Probable Cause Approval Date: 11/20/2006
Aircraft: Gulfstream Aerospace G-III, registration: N85VT
Injuries: 3 Fatal.
Now why would they do that if the first leg was Part 135?
Face it - all you know about the charter business you picked up being a pilot, I've been involved in a lot of other different positions in the charter world, and your misunderstanding of the regulations (you seem obsessed with holding out as somehow being related to this discussion) means you're coming to gunfight armed with a pillow.