Does it take a lot of effort to write or is it light? Or the golden mean?

If you want to write smaller, write lighter; if you want to write bigger, write heavier. That's what I do. Generally speaking, writing English words is small and beautiful, so writing is gentle. If you practice writing, you can write heavier, but the pen should be thicker, and English looks better even in lowercase. But I think it's better to write the formula lightly for math problems. Chinese is bigger and English is smaller, and my pen tip is better. I'm going to buy a 0.38 gold pen to write English, but this small pen tip is not very good, so I haven't bought it yet, because it looks beautiful and has a small pen tip, and it's not bad to write with several pens. This is my personal opinion. .