perforated blue cards and summer camp

Hello all,

I just ordered the TroopMaster perforated blue cards for our troop. How do people use this with summer camp?

Do you fill out the Scout's name and merit badge for all the ones they plan to sign up for and then print them out to bring to camp, or are they filled out after camp? I would think that the camp MB counselor needs to sign it, so I'm guessing that you're mainly printing blank cards with no requirements checked off.

What's the best way to handle this?

Thanks in advance.