Quick question Genghis,
You said that 'I can however, unlike an FI(R), work without direct supervision of an FI, and do biennial instructor flights.'
Do you mean that an FI(R) cannot do biennial instructor flights? I was always under the impression that the only requirement for a biennial instructor flight is that it is a flight of an hour or more in duration with an instructor? (which is ludicrous as there is no content requirements although the signature in logbook does somewhat get around this)
Does it matter whether or not they are restricted in terms of offering this instructor hour?