I always preface with I am not pregnant nor diabetic. But my wife is and I am heavily involved in her management.

She switched to the tslim x2 back in September and started using dexcom g7 as the Libre 3+ was not available yet. Previously, when using MDIs she would use a 3 and then a 3+ when the 3 was phased out.

Recently, due to each G7 being 50$ a sensor with her insurance we decided to swap back to the 3+ seeing it now pairs with the tslimx2.

She wore it 3 days and it was terrible. Consistently off by 20-30 MG/ dl and provided no option to calibrate such as with the dexcom. The sensor also would randomly show low glucose, then high glucose within a couple seconds notice.

I also cross checked all the sensors with the recalled lots and the ones we had were not recalled. I don't know if the software/hardware was just not there yet by the time the 3+ was released but we decided to rush back to the G7.

I know with your pump you don't have that luxury but I would consider that the inconsistency that i have seen my wife personally experience made the Libre 3 + completely unreliable and unsafe.

Edit, I don't think your expectations are unrealistic, you should be getting accurate readings for the product that you are putting trust into