David I think your viewpoint is right about Cis. My brother spoke yesterday with a fellow with one of the hospitals in Florida and he had the exact same words " I would rather not hear too well if it meant I would continue to live".
The doctors team who did surgery and oncologist treating him first had exactly recommended a Cis weekly bag. It all happened when we went to this new set of doctors which are close proximity to where my dad lives.
But, anyhow they have started Carbo with 6 bags. My brother is trying to talk to other doctors and getting some suggestions. And now lets hope for the best.