Hi Elaine
I tried FIASP in my Combo for a short time but got very skanky cannula sites, so although its speedier action was good for meal times it was not worth it as I was reacting to whatever they had added.
I now use the Medtronic 780G with their Guardian 4 sensors in the closed loop, where the pump and sensor have a chat every 5 min and the pump makes adjustments to my basal insulin as necessary throughout the day. Love it but it took some getting used to, especially trusting it to do it’s job. one of the biggest advantages is the levelling off overnight from any blips in my levels whilst I just sleep through. the night hypos have also vanished and no alarms to wake me up. The facility to codon closed loop would now be the top priority for me in a choice of pump.
It is worth checking with your clinic to see which pumps they support as most hospitals only support certain ones, since their DSNs are trained for those. There is likely to be someone on here who has used the options you are offered and can tell you the Roos and cons of them.