Sorry Michelle but I can't help you on that as I don't eat that many carbs.
@helli might be able to advise as she uses Fiasp although being on pump it is a lot easier to manage split doses. It does tend to be very individual though. I would probably take less Fiasp up front that you did with NR but it will depend on the meal. If it is fatty or high protein it will need less up front or even all of it just after you eat or maybe between courses (but will also depend on your premeal level). If you are above 6 before the meal then some before and some after, if you are 6 or under and a fatty meal then maybe inject all of it after the first main course. If split over 3 courses, then some after the first course and some later..... There really are too many configurations and variables to give any definitive advice.
The one and only time I had anything like that was a Chinese banquet. I was about 9 before I set off in the car, so I jabbed 2 units correction before I drove there knowing it was just 20 mins and there would be prawn crackers to munch on when I got there. Then jabbed some about 4 or 5 more units when I got there and the meal was ordered. Then I just kept an eye on my Libre and jabbed a bit more as my levels approached 10. I logged every injection on my Libre so that I could keep track but I probably had 5 or 6 injections including the one before I left home and at least one more when I got home. I have to be honest, I didn't even attempt to count carbs as that would be far too complicated but I avoided lots of rice and noodles and just ate the tasty stuff with a tiny bit of stodge to soak up the juice. You really just have to play it by ear. I love having Libre for enabling me to do this in stages and see how I am getting on and I can whip my pen out and jab myself a few extra units in seconds.... Of course it helps that I reuse my needles
so no faffing about having to change after each dose and keep the sharps somewhere safe. I do have a spare in case something happens to the "in use" needle but so far I haven't needed it except to enable Elaine (
@eggyg) to jab for a fruit scone when when we met up one lovely afternoon and she hadn't brought her insulin.
🙄 Fancy going anywhere without your insulin!! Anyway, we are now "diabetes sisters" instead of "blood brothers" because we have shared insulin. Naughty aren't we
😉