You may find that if 0.5u is too big a dose for her, that they’ll consider a pump. Mine does doses as small as 0.05u which means you can really finely tune mealtime boluses and corrections - I don’t need to let it run higher in order to do a correction now, and that makes a huge difference to my management. How old is Scarlet?
If you google the name of your CCG and “pump criteria” you may get some info more relevant to your area - good luck with your team tomorrow!