If your A1C is good (peeks, ok it’s pretty good!! Way to go!!), I think that a CGM can be useful to reduce the Standard Deviation and gt rid of the 20s and the 600s? Like John said, w/ a CGM, you can spend a lot of time in a decent range. I will watch my post parandials go from 115 to 121 to 125 to 127 to 128 then reach the “crossover point” and come back down. If they are rocketing up, the 128 might reflect a BG reading of 140-150 w/ the “lag time” of the interstitial fluid but, I figure the “crossover point” is pretty reliable. That way, instead of waiting 2 hours to discover a 150 that I would want to fix after the fact, I can check at 128 and see whether that’s the “peak” or not and get a slightly tighter control of that number that way. Similarly if you have any type of DP issues, you can get very nice readings to suggest where you might need a basal bump to help that out, without doing middle of the night testing. Not a huge deal but nice and again wiping out some of the work and suprises? It may seem like a lot of work but knowing pretty much all the time about where your BG is is very useful.
I think that for me too, it’s sort of a reminder that if I have handfuls of junk food here and there, I will see exactly what happens and sort of “upset the apple cart” and I get sort of attached to nice readings so I eat more conservatively. Obviously, a 43 year old shouldn’t need a $7000 babysitter but well, it has had an effect along those lines too.
It’s also very useful for exercising. Not just during but getting ready, making sure everything is smooth and where you want it to be and also after, to perceive and react to post-workout highs that can crop up. You can catch them with a BG meter and, a lot of times, I will double check the CGM but much of the time, it’s very helpful to have live, or live twenty minutes ago, telemetry.