You'll be happy to know that it is a JAA requirement, and not a particular school requirement. So, unless you do brush-up courses back to back, there is little avoiding two trips to the UK.
So, just to make it painfully clear, there is not an approved school where you can get out of this requirement if you want to sit the JAA exams. You must have your exam application signed by the school indicating you have done the requisite training, including residential part of the course.