Any thoughts on how cgm changes the picture?
Sure, I know not everyone has it but it's only a matter of time until it's as commonplace as meters.
That point aside, for those of us who do, it's an accepted part of ideas like Sugar Surfing that there are unpredictable variables but just by being able to see how a trace is playing out after a meal, we can make small adjustments to sort any initial dosing errors long before we're out of range. It reduces risk massively.
Sure, it might mean I have to spend a bit more time glancing at my watch and maybe a few more injections, but that's a trade I'm willing to make to be able to have a bit of cheesecake every now and then.
I don't really have or have ever had a CGM, but I do have a libre with the MiaoMiao and xDrip+. So maybe we can call that a CGM?
I dropped my HbA1c from about 8, to 5.5 to 5.8 by going low carb. Getting the Libre+MiaoMiao+xDrip+ instead of going low carb for sure would have dropped my HbA1c, but down to below 6, I dont think so.
I have use the libre without MiaoMiao for I think a year, and it has really helped me a lot, but funnily my HbA1c have not gone down, I think this is because of 2 things:
1) my values was already so good that I used the extra data I got to get better life quality instead of chasing better values.
2) The libre for me was showing consistently low values of about 1 mmol/l, I have been afraid to go lower than 4 my whole life, so I just did not dare to go below libre 4, so I basically tried to achieve 4-6 by libre, which was 5-7 by finger prick.
Now I have had the MiaoMiao for 3+ week, my libre average blood sugar is down by 0.5 or more. My blood sugar curve is much flatter, since xDrip+ can give me alarm in the office when I'm working and I can take sugar to level out and at night.
So a CGM should be able to help everyone achieve better blood sugar if you can afford one get one, but I think low carb/low dose is more effective, but better anyone out of two than nothing!