Yes indeed HID's are really a must. I recently changed back to OE headlights for the MOT (just in case) Even though I refurbished to a very good finish, which took the best part of a week of polishing with various methods, inside the lens as well. Still like candles.

I'm in lazy mode at the moment, I'm going to refurb' the lenses of the HID's. This time of the year combined with old age, dark nights & any other excuses I could think of, in all honesty this isn't going to happen some time soon. My wee diesel hack will see me through the winter.