Ah I see you decided to go off on a tangent rather than answering the original question which was asking if he could add it to his JAA licence.
Nope
The question was regarding a "tail dragger rating". No such rating exists, it is an ENDORSEMENT. So what I was doing was showint that RATINGS can be used with a JAA licence with some previsos though.... and so can endorsements
Are you still mad at me about the IR thing 
Regarding training in the USA.....(because someone else brought it up). Why on earth would one pay £300+ VAT per hour PLUS £50 per hour instruction to get a ME rating in the UK when for $265 per hour all in you can get one in the USA? I am genuinely interested, I like to support things in the UK up to a point................
The saving of nearly £3000 would pay for a first class ticket to the USA as well as a nice hilton somewhere.....