Wax box grading

Mintstate

I have some full wax boxes I would like to send to GAI for grading, such as War Bulletin, Soupy Sales and Rails & Sails. What I'd like to do is just send in the full boxes and have the packs graded, and then the empty box, after they have removed the packs. Anyone have any experience doing it this way, or do I have to remove all the packs and package them seperately from the box? I'm guessing this would be 2 different services and need to be on seperate invoices also.
Richard