You are very wise to have the extras available in case of emergency. Insurance companies can sometimes take issue with that and will only allow prescriptions to be refilled in accordance with a schedule they themselves have approved (not necessarily with adequate medical and scientific support). My insurance would not, sadly, allow me to have a backup transmitter as they are too expensive. With respect to the finger sticks, I do understand that it can be problematic. As a cellist, when I was much younger, my finger sticks would become an issue every now and then but there was no choice back then. It might makes sense to have the glucometer on had just for emergencies though? It would be another backup which is consistent with your lauded caution in having backups of all supplies. We must each find our own way to manage type I diabetes in a way that works for us (while remaining open to new ideas and technologies, naturally). You and your family are doing an excellent job. I hope you are able to get the transmitter. Worst case, if the alarm comes on saying the transmitter will expire in a week or two, I am sure they will overnight you another. Be well!