Thank you for your answer, Brian! The problem is: when I make new cuts into my cylinder, in order to connect the points, the hypernurb always shows hard edges around the cylinder. I finally solved the problem by subdividing the cylinder a few times and played around with the hypernurb weighting tool. Now it looks good.. anyway there are a lot of sub divisions now and the fils size increased… so I don’t know if this is the best solution…