I used to work for a Kimber dealer and have some experience with doing this. 8TC is a little more complicated than the others but basically the same. You will want to carefully unwind the ends and spread the conductors apart. The aim is to have just enough length to be able to seperate the postive (blue) and negative (black) and be able to selectively reaggregate them to their respective bundles, ideally without having either side with a stray strand over the other.