@Cecile ( @ckoei?) ah now don’t forget Lantus’s marvellous 3-day lag before settling down. At one stage I tried altering my basal based on my 10pm bg reading. Complete chaos. Afterwards I read that L is well known for taking a few days before grumpily settling in to any new system. Levemir is far more flexible apparently, and since it often exhibits a shorter (16-18h) activity period is often split into two doses for ;