I've been reading recently lots of reviews of the J.Herbin and Noddler made rollerballs. There are mixed views tending towards being favourable all things considered, but a constant negative has been cracking of caps and barrels. I saw comments from a few of a month or two with no cracking but how typical is this I wonder? On forums you generally hear more from the people with problems than those with no problems. Have any of you knowledgeable folk out there had either of these fountain ink refillable rollerballs for say a year or more? If so can you give me your opinion on how practical these are to own long term? I feel a bit guilty posting a thread about rollerball pens on a fountain pen forum but my excuse is that I wish to use one with my favourite fountain pen inks for certain situations at work when I have no alternative. I've often wondered what the view is here on FPN on people posting threads about rollerballs. Is it allowed but frowned on or are all embraced together in a FP ink group hug? Thanks guys.