Actually even though there is a drawback in blackening i wanted to get it done as well just to make the car look more sporty. That got me thinking. Most of us use our cars for city drives only where this loss of 15-20% hardly matters. Heck all of us have seen vehicles without headlights zooming past us in the cities. Considering this I had an idea of actually buying 3M tints (the dark shade) and putting it over the head lamp directly . It wouldn't cost much and you spare the disassenbly of the headlights Secondly while going for highway drives it can simply be peeled off and once your back you can either choose to repaste it or have another one done. This is only a thought though. I think these tints have some sort of a sticky material that might spoil the dome altogether. But anyway there are many such options should the idea be really important.