Thing is I write pretty light, it doesn't really matter whether you use HB or 2B, it's how hard you press that matters, u can easily make a HB darker than 2B even just by pressing a little bit more. But in all honesty I think I should be fine, because even if they see a super fine line and can't really make of it, I'm sure they'll just report it and ask for the paper to be seen on a hardcopy. I mean all papers get double marked so pretty sure a teacher can't just troll and give u 0? What do you guys reckon?