I have a first generation Nadira 70 mm and Hangisi in 70, 90 and 105 mm. The Nadira is a pointy toe box and the Hangisi not so much so. I'm a 38 in all of them. First generation Hangisi I went up a half size because it was pointy but that toe box has changed slightly and is more forgiving and so I'm true to size.
And the BB is pointy like the Nadira in one version in which I'm also 38 but the BB also came in an almond toe which for me was more comfy but also was a 38 in that as well. And for some reason I had to go up a half size in the lower the heel in the BB. I don't know if he makes the almond toe anymore, he personally didn't like it so may have discontinued that toe style.
So this all depends on if you're buying new or pre-owned.