they add the extra wires so that IF the wires do break, you wont have to wait for a warranty to send you new ones and won't miss any days on the hill. it does happen but i don't think its a common occurrence. i wouldn't worry about it too much.
So, Cr0, I take it you're a Mt. Snow regular? We had an awesome day there last weekend. Great conditions! Thanks for the info...I love the Thirty Two Focus boas so far. The boa is the best thing ever! But I'm bummed to hear that boots only last a year or two...I thought I was buying shitty boots. I've yet to get two seasons out of a pair, no matter how much I spend I spend on them.