DavidT...
The advice BEagle is trying to give you is all in good faith! It may sound like he is being petty but he isnt! Obviously you are well accustomed to the FAA terminology, the situation would be the same if we were to go to the USA and start talking about FI(R) etc. The yanks mostly likely wouldnt have a clue what we were talking about!
The point BEagle was trying to say was if you are going to teach JAA students, it would confuse them if you mixed these terms up. Also there are also some people at some clubs/schools who would feel you are exageratting your qualifications by saying you are a CFI (they understand this as Chief Flying Instructor..not Certified Flying Instructor!!)
best of luck
