My latest HbA1c is 44 (6.2%) and about 75% TIR with Low 2% and Very Low <1%. My best was in 2023 @ 43, but my endo was unhappy about Lows > 5% (hypos are the reason I was given a pump).
Interestingly my Dexcom 7 (and previously Dexcom 6) almost always overestimates my level by 3-4 points. Exercise and low carb are critical for me to be able to keep in the low 40's. I'd like to get below 40 with very few hypos, but that will almost certainly require giving up my occasional treats of peanut butter on wholegrain toast!