Hi, I'm planning to buy a DSL in the next few days. I was looking for a nice backup device and found out the G6 Lite which looks awesome. However, even after reading a whole bunch of posts, reviews and so on, I still can't figure out if a passcard is absolutely necessary on a non flashed DSL. If someone could explain what I will not be able to do without a passcard (like the Passcard3), I would be grateful. Cheers.