Replying to Cast Look Pivot15 second ski kit

I`m looking for a new ski and for the binding i`m thinking about the Look pivot15 with the touring System.
For my recent ski that i use for pretty much everthing, i want to put a new binding on them too, also a cast look pivot15. So i have seen on the website of cast they offer a second ski kit. Does anybody of you have experiences with that? And does anybody knows if there is a chance to get only the heelpieces of the Look pivot15 for the second Ski?