Thanks for the info. I think harem aka colony breeding refers to 1 male + >1 female. I was thinking in terms of 1.1 assuming of course a non-aggressive male.
Yeah several sites mention the wearing out, but none quantify it. For example: January 1 = 15 pups; January 21 = 14 pups; February 15 = 13 pups; etc
I woke up to 16 pups this morning, hoping she would split them up into 2 ~equal groups as I have seen with other breeders in the past. But instead she has a group of 3 and a group of 13. I guess the group of 3 are going to grow much faster, we'll see.