Obviously you must be using mono amps, as a 4ft cable would not offer much flexibility with a stereo amp. Have you considered sending them to Kimber? That way, should you ever want to use something different, they would be easier to sell used, and the integrity of the connections would be identical on both ends.
Absolutely do not get caught up in the scenario of using different cables for the highs and lows as this causes problems at the crossover point. See this article from Vandersteen,
http://www.vandersteen.com/pages/Answr7.htm
Also, if you do not have 100% confidence in doing it yourself, I would not attempt it.
Absolutely do not get caught up in the scenario of using different cables for the highs and lows as this causes problems at the crossover point. See this article from Vandersteen,
http://www.vandersteen.com/pages/Answr7.htm
Also, if you do not have 100% confidence in doing it yourself, I would not attempt it.