So strange and I'm glad to see others with this ratio. I read in "pumping insulin" that those with a 50/50 TDD have better numbers and a smoother ride but the harder I try to push DS towards that 50% basal the rockier things become. Even with backing down on the I:C we get more lows and more spikes. We have to stay around 30% basal. It's nuts! Or just YDMV.