I didn’t but according to this post: https://forum.bambulab.com/t/why-can-a-0-4mm-nozzle-print-0-8mm/37142/4?u=tncrdn it should be 2.0 also adding the semicircle on each side.
I’m also wondering how you would approach printing this. I tried printing without vase mode using 2 walls of 0.82mm, tried it both with inner/outer because of the overhang and outer/inner, even thought the inner/outer gave me a better result the surface quality still wasn’t as good as vase mode.
And printing 0.8mm wide in vase mode is not good enough for my purpose, it should at least be 1.2.
I really wish Bambu released nozzles bigger than 0.8 but I guess that is never going to happen.