I second Dee... you wont regret it. I recently doubled my stash of needle tips so Id never be without the right size, or so I can do 2 sleeves at once... I LOVE them and I was never a metal needle fan until now. I was an Orthodox Deniseist.
look at the stickie on interchangeables p. 36-37. you can shouten the cables easily enough. But, the shortest I was able to work with was 18inch tip to tip (the needletips are longer than a standard 16 in circ needle)