Hello strangers! I got pulled in by elephant insulin doses, and then stayed in because of dual boluses – one of my favourite things. I use a dual just for pasta. After quite a long period of experimentation, I have settled on 30/70 (or occasionally down to 25/75 if blood sugar is low to start with) over either 90 mins or two hours, depending on whether I’m sitting down digesting my pasta (90 mins), or out and about (2 hours). If I have a correction to do too, it makes my head hurt trying to adjust the percentages, but I still love it.