The contact block on the back has two connection points. One normally open (NO) and one normally closed (NC). For a starter switch, of course you would use the normally open. For a kill switch, you would use the normally closed contacts.
Have fun! I just posted a pic of my new grille block in the crazy coroplast DIY.
I talked to matt about this last night, since you are the new gaslog killer. Anyway, the way it'll be is that bikes, hybrids, and regular old crap cars will all have different lists. Which makes sense to me.