Well said JimL, saves my big reply.
Good points Brian, but as we know, a good operator will apply their own limiting performance graphs to the particular operation (ambient conditions) to ensure fly-away accountability. (you don't use the same charts on an S76 out of Darwin, as you would on the same aircraft in Bass Strait.)
If the tour then only flys with five bums on board instead of seven, I'm sure no paying clients will complain when explained "why".
Brian, I'm guessing you are retired now. Hope it's going well. (We've shared a cockpit). Integrity.