Bristow Academy in Florida train FAA CFI's who have 500hrs or more for the JAA FI (Helicopters by the way). They do a modified course(30hrs of ground and 15hrs of flying) along with the guys who have come through from the JAA side. These guys get a special authorisation from the UK CAA to train JAA students. They are also unrestricted, so they can start with the CPL students straight away.