Hi Tony,
Thanks for your interest, and no I have not tried Nissan. I bought the 2007 car in 2008 so cannot be sure of its early history except that it is HPI clear. The tracked was measured in 2009 with the result posted above. Believing that the rear was not adjustable and that therefore beam replacement was the extreme and costly fix I decided to put up with it. Now that I know a bit more I am inclined to try shimmimg - not the best practice and unlikely to be condoned by Nissan I suggest.
I have tried a few times to add the alignment chart but I think the file may be too big. I'll try again as a seperate ost.
Regards,
Henry