Having just reinstalled my routes following a Windows re-installation, and having just purchased JT London to Aylesbury, I noticed when driving along the Met from Harrow to Finchley Road that there are AI services running along the Chiltern Line and Jubilee Line. Closer inspection shows that the software has identified IOW 1938 stock (class 483) as compatible with the Jubilee Line and is running them as AI trains along the Jubilee. I suppose at one time, these trains would have been on this route (when it was still part of the Bakerloo). Nice one JT.