It's been well over a year that Hans put me on to Veevus thread and I've been using the product for the majority of the flies I tie. I primarily use size 12/0. I'm sold on the stuff. I was using Benecchi but the thread is tough to find. Now that Hareline sells Veevus, it is available at the majority of fly shops or sites. I can see no difference between Benecchi and Veevus... other than color options. Right now, the color range for Veevus is less than that of Benecchi but I've never been one to use a lot of different hews of thread so it doesn't matter to me. So, I highly recommend Veevus thread. It is damned, tough, skinny thread.