I'll try to make this story as short as possible:
I have bought several Bandits second hand, B4s and B5s and I'm very happy with their performance. After a while the bars started corroding as described in many threads, for example this one: http://www.kiteforum.com/viewtopic.php?t=2374523&p=737199
(I didn't know about this when I bought them.)
Since I had bought them second hand I was aware that there was no guarantee, but I though what the hell, let's send my local distributor some pics and see what he says regarding a possible replacement. My main reason for doing this was safety, because I can imagine that a bar breaking under load during a session is not much fun...
13.11.2013 - I send him the pics of the corroded bar.
27.11.2013 - He replies and says that F-one replied that "the pics show slight discolourement, but that there is nothing wrong with the bar". The distributor says that F-one seems unaware of the problems (?) and ask me for some more info.
27.11.2013 - I send him the links to both english and french forums where the issues are described.
9.1.2014 - I contact the distributor again and ask if he has heard back from F-one. He says he hasn't but that it's strange because they usually reply immediately.
31.1.2014 - I contact the distributor again. He says that F-one replied that based on the serial nr I sent with the photo the kite was not purchased in the country of the distributor (hence no replacement).
So after almost three months the only answer I received from F-one is that the kite was originally purchased in another country....
I'm by no means saying they had to replace my bar, but from a company that cares about it's customers I would at least expect:
1) That they recognise that there is a problem (in this case with potentially quite serious consequenses).
2) They give you a clear answer regarding a replacement (yes/no).
3) If no, they propose a solution. For me this would for example be to offer a B6 bar only (without lines) for a reasonable price.
I would also like to point out that the distributor has been very helpful, so this post is i no way directed at him.