I am sure that thee year model changed to " air " at some stage, but I don't know when.
So to save lots of stress why not buy yourself a golden oldie, and the very, very best that money will buy, and that's going to be very, very little £ , and get one of my vintage ................ 1994 is really good, well, for me anyway.
Love it to bits and couldn't be bothered with expensive gadgetry for when it all starts to go wrong !
Malc