but the question remains who is going to outlay the first big dollars for upgrages onto more efficient newer types and tussle with CASA?
Well aren't we seeing the answer to that? Cobham. They ran their Ejet for three years and now have another.
Any operator in Australia who wants to use this type will not have much of a "tussle" with CASA as they are a known type, unlike say an SSJ or Airbus 220.