I saw you comment somewhere else before about the babies being killed in the first week from all the back and forth. I was thinking about putting moms alone until that 1 week mark and then giving them a room mate, but I think I like your other suggestions more.

So would you suggest moving the males every 2 weeks or stretch that out to 3? I figure at 3 weeks when they come back around to the first tubs they'll have 0-2 weeks of rest between them. I'm sure I could push it out a few days more but it's easier for me to remember things weekly as opposed to every 23 or some odd days.