In general, it is okay to use the hook pen to write, but it is not suitable for practicing calligraphy. The calligraphy pen can write with a sharp edge, and it is the best pen for practicing calligraphy. If you use the hook pen to practice calligraphy, , it should have no effect, and the characters will not be improved. I suggest that if you feel that your calligraphy pen is too big, you can change to a larger book to practice writing, so that you can get the best of both worlds.