Can someone confirm that I'm doing the right thing here?

When I began with MultiBit, I just used the default wallet “multibit” -- no name change, no additional wallets. So my FULL BACKUP of the one wallet was pretty straightforward. I'd copy..
multibit.wallet [file]
multibit.info [file]
multibit-data [directory] [entire]

Now I've added a second wallet “second”, and I see my user file folder has simply added..
second.wallet [file]
second.info [file]
second-data [directory]

Question: To now make a Full Backup, do I just copy all six of these file/directories into my backup set? Nothing else? That's ALL I would need to fully restore everything should I need to someday?