I'm looking for 6-egg cartons in the jumbo size. I found them that are sized for S,M,L, and XL sized eggs, but I'm wondering if they'll work for big duck eggs. I haven't weighed them but they have to be jumbos. Of course I can find jumbo-sized dozen-egg cartons, but I want the six-egg style. Will the S-M-L-XL size work?