I have 2 and love them both. I started with the 1000 and have since picked up a microtune andI put the 1000 on my sons bow. I am looking a buying a general here in the next couple of months and it will also have a viper on it. 2 of my fibers on the 1000 broke but its a pretty easy fix, they are .029s. I have .010s on the microtune and haven;t had a problem with any of those. Like the rest have said I don't think you can go wrong with any of the viper line.