I would suggest holding off on the big guns until the comparative test with the h4, h7, led with a light meter has been done, and also give them a chance of a "good will gesture", as then they don't appear to have been forced to do it so are more likely to do a "good will gesture". This then also points out that we are VERY serious about this issue, as although it is an "amateur" test, it is still well organised and documented enough to take further, and harder for them to argue.. Hit them once with our findings and see what they say, I for one as a h4 owner would settle at the moment for a free h7 "upgrade", as it will only cost them new light units, and a bit of dealer time. BUT please note, I haven't taken delivery of mine yet, or seen a comparison between the h4 and h7, h7 and LED.