I am asking this question and hope to get people to answer it properly.. I have a n54.. I am buying another that has stock. I want to stick with the twin setup. That being said I hear alot about PURE,VARGAS going out and others as well. What I want to know is we all invest in these and it costs alot. What company vouches for their product and warranty and will replace them? Please be respectful to your responses and I am asking about twin setup.. so no single talk or bashing.