I just use the LX for testing ketones, the advice on the GlucoMen home page likely means you should also test your bg levels..... which obviously we do anyway, I'm on a pump that has an integrated bg meter but before that I was using the Accu-Chek Aviva Expert and just used the LX Plus as a ketone meter.
@Spiker, @MattJ, if you want to continue with your argument then do so by using the pm facility.