Earlier quoted context omitted.
Pshh ... Don't use Pens! Use Mechanical Pencils. No leaking/drying/wastage and you always get to marvel at the ingenuity that goes into making some of these gadgets. Plus it gives you an excuse to indulge in another collection mania :-)
I tried pencils but I find text written pencils to be too faint. I find it uncomfortable to read. But pen writes text in bright blue color which is more pleasing to read.
See https://www.jetpens.com/blog/The-Best-Lead-Grade-For-Every-A... https://www.jetpens.com/blog/Mechanical-Pencil-Lead-Size-Com... and https://www.youtube.com/watch?v=73gZFjIAHtw