Nice article!
One of the reasons I got my consultant to prescribe Fiasp was the delayed action of NovoRapid. No problem (except it being very annoying) pre-bolusing for food, but injecting 45 minutes before you wake up is kinda hard (as described in this paragraph in the article):
"If you want to be very disciplined with your blood sugar levels then you’ll need to test with very small doses (.05 - 1.0u), and roughly 30 - 60mins before getting up. Otherwise, you can inject as you’re getting up, but you then run the risk of rising bloods - potentially out of your target range."
Fiasp solved this problem for me. On NovoRapid I was usually out of range for some 3 hours after getting up, despite bolusing as soon as I woke up, on Fiasp I stay almost level.