I'm prepared to defer to your knowledge although it does conflict with the views of the US instructors that I've discussed this with (however it is seems to be an area that causes some confusion with many people).
Most Instructors in the US would not know what a UK licence looked like if you slapped them in the face with it. The rules are very clear and a 61.75 confers no extra privileges to the underlying licence.
The underlying JAA licence requires 5 hours of training with an approved Instructor, 3 hours duel and 2 hours solo (for the pedants out there it does not have to be done solo, it can all be done dual) which includes a cross country navigation flight in order for your to gain the privilege to fly at night.
It is not a grey area at all.
Edit: To include the fact that 3 hours dual is required but remaining 2 hours can be dual or solo according to Instructors discretion. Just in case anyone thought I might be stating it was some sort of legal requirement for 3 hours dual and 2 hours solo.....