Final, let's not start to cast aspersions about airmanship...
As u said SEE+BE SEEN is the FINAL safety protection. There are one or two other measures that should, in CAS, be reasonably taken beforehand!
Regardless of flight rules the physics of a/c ARE very different indeed. A large jet will be travelling faster and be less manoeuverable than the usual GA type a/c. Obvious?!?
A large pax carrying jet should not in my humble opinion have to worry about the continual possibilty of having to take avoiding action. The self loading freight may not be too happy about playing russian roulette any more than the professional driver!
What may seem like a large chunk of CAS to u in a Cherokee, appears far too small to accommodate modern (faster, larger) aircraft and traffic levels from my earthbound view in front of a Radar display.
