Just out of curiosity…what are the issues with renzetti? I have been tying on a traveler for several years, and have never had any complaints or reasons to consider using something else. I tie a wide range of flies from small stuff to big bass and salt water flies and it seems to work fine. Am I missing out by not looking into some of the other vises mentioned on this thread? For those who have decided to upgrade, what advantages do higher end vises have?