I called Vicious Fishing about two weeks ago to let them know about my terrible experience with their line.
They said that the particular line I bought is their cheapest fluorocarbon line, so it's not their best product. But they also said it should not have fallen apart like that. So, they offered to send me a new spool of their higher grade fluoro to make up for the trouble I had and to give me a chance to try their better product.
I got it in the mail yesterday and I'm anxious to give it a try soon. It's called Vicious Fishing Pro Elite 100% Fluorocarbon.
I will be writing a review on it once I've given it a thorough workout