I have sent several boxes to OWH and some cards were better than others. Sometimes cards may not come out the way we exactly like but some one else will think it is great. But they do have certain things at OWH that they stress, and a sturdy card base is one. If the service man/woman is out is the desert and cannot write on a table(maybe only their knee) then a good card base will make it easier. And they want you to line darker card bases with lighter paper and I was doing thet on one side then I had a DUH moment which I'm sure some one has already thought of and started putting white paper on both sides for more writing space(using thinner cardstock for that). And another thing I never thought was they mentioned on the OWH website is they may only have a pencil so to line even some kraft card bases would help. They may seem picky but thier heart is in the right place.