I would argue that you can find a ideal I:C which brings your bg into range at the 2 hour mark but unfortunately with certain carbs you may well spike at the 1 hour mark. While not all carbs are equal they still require the same amount of insulin from my experience. If I had a slice of cake with 100gs of carbs, I may well spike at the 1 hour mark and still be high at the 2 hour mark due to glycemic load but at 3 hours I will come back into range. If I had a raw carrot equalling 100gs of carbs I probably wouldn't spike and will probably be in range at 2 hour mark. In both scenarios my I:C is correct however the problem is my Novorapid cannot imitate phase 1 release of insulin from a healthy pancreas. The Novorapid best matches phase 2 release of insulin which is slower. Just try to do the best with the tools available today
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