I'm just gonna say it: this does not matter. Just use whatever you want. If you're afraid that someone is going to think less of you for it: the people who matter won't.
ıt might simpıy not matter though, a miııimeter here and there, ı suppose.
I see what you did in the second paragraph too. It’s another example of “a millimeter of difference in the length of a line” mattering in that it looks weird, though it’s not much harder to read.
Being able to render a variety of line lengths with different meanings is a cool and useful thing.