Well, I've been really enjoying my Polychromes which I bought from Gollihur about a month and a half ago. I had to wait a while for them to be in stock, so I think they must be the latest version. Nice attack and just the amount of sustain I like. Clear pitch, but not steely. Bow nice, but probably not ballsy enough for a real section player. I'm sorry to hear that others have had the same kind of quality issues that I had. I was reassured by both the manufacturer and Gollihur that they had been solved. I guess it's back to the hunt for me when these start to die. I had hoped that my search was over.