Try Osram Coolblue. Brighter and better in snow too! just as well since we'll be covered in the stuff soon! The bulbs are legal and don't give off a dark blue like those boy-racer blue ones.
There's a certain satisfaction you get from driving over a Sleeping Policeman
i think the reflectors wear out as when i bought mine it had one headlight replaced for the mot and the difference is huge,i was actually thinking about replacing the other one cos it looks like its got a bad earth there so different