Thanks for the reassurance and replies folks. I'm going to phone our local pet store and see about buying a whole litter of very young pinks for Emi so I have the correct size and good consistency of size. They are great for mice pinks but they do tend to breed some of the biggest mice I've ever seen (you should see the size of some of their retired breeder mice...WOW!).
I'm still getting used to this tiny snake and feeding such tiny prey compared to what the balls and the boa eat.
Thanks again!
~~Jo~~