Sorry, I thought we were talking legalities only here. I'm not altogether sure why the CAA would advise checking out instructors for their competence in flying from the right seat when they have presumably undertaken and passed a full FI course sitting in the right seat. There is no dispute whatsoever about the important and potentially dangerous differences between flying from the right seat and the left, and I would not condone flying from the right without, as it were, "differences" training . I don't reckon I would be much good at driving if someone suddenly put my car clutch pedal on the right, any more than a pilot with no previous flying experience in the right seat could cope with a reversal between stick and throttle when landing. But then on the other hand there are aircraft with dual throttles ( strangely, usually on the left not the right !) and my instrument and night instructors all managed to take off, fly perfectly well in IMC, and land from the right seat by bending their heads over to the left to look at the instruments , and then of course there are those many aircraft which have full panel both sides.