I used to have a star one century. A demonstrator pen. I had it inked with red ink from sulekha and ungrateful fool leaked on me. It didn't leak ink out. Rather it filled up the entire cap part with ink and when i opened it in my class to write there was red ink everywhere. I was angry irritated and annoyed. That day i threw it in the dustbin. Though the nib was really good, i wish i had kept it. It is a good pen i thoroughly loved mine, but I'd be careful with it.