I found this very interesting, being a nurse and having the constant need to have a reliable, non-bleeding pen I can relate. You might be interested to know in this forum that having a good pen in the Nurse’s station is like having a Thumb lol…u can’t function without it. Oh and don’t come to work and ask to borrow one, the dirty, untrusting looks you get with cause you to seek the closes sanitizer station. So yes I understand the choice affection for the PEN. K. Way