I decided to try Wearingeul Persephone in my Twsbi Swipe. I have a 1.1 stub on it and with the shimmer of this ink I was wary of clogging. After almost a month of using it just about everyday, I have yet to pick it up and have a hard start. I am very happy with the feel of the pen and the nib is so smooth for writing it encourages me to journal more. All around great choice.