Sounds like you're getting some good advice, and congratulations on the new additions. One suggestion that I would make for the problem eater is to give her at least a week or two before offering her next meal. I would try a f/t hopper mouse. Use tongs and wiggle the mouse around or make it hop around lol. That may get her more interested. If she still doesn't seem to want it, leave it in her cage and don't disturb her for a couple of hours. I like to cover the cage during this time. She may just want to be alone to eat.
Best of luck, and don't be afraid to ask any other questions!
Oh, and here's a great feeding schedule discussion I like to share:
http://www.faunaclassifieds.com/foru...d.php?t=255782