WCW,, I read the stories about VTL's customer service,, Bea has been especially nice and helpful, she is "to the point",, does not BS around,,she has sent me a return authorization form to have my mono's upgraded with the external bias points,and other upgrades,should I choose. She told me how much it would cost to look/evaluate them,also told me that they might have them for 4-6 weeks,depending upon what I wanted done,and was very upfront about the cost. She is very knowledegabe about the gear. I get the feeling that they would do a thorough job,so I have no complaints,,so far. When I send them in,I'll post here,regarding my experience.