Your opinions on cross-wiring the binding posts?

Australian cable manufacturer Eichmann, promotes a cross-wire configuration when connecting one set of non bi-wire speaker cables to speakers that have bi-wire or two sets of binding posts. In this configuration, the signal (positive) cable is connected to the positive (red) input on the treble or high frequency set of binding posts and the return (negative) is connected to the negative (black) input on the low frequency or bass set. The jumpers, of course, must be in place.