Headlight Repair- Watch out

I just recently bought a headlight repair kit to bring back the clear platic look to my BMW 540i and my Audi S-4. I found this kit online at Scientific Instruments, Inc. in NJ. The kit came quickly-no problem. So this weekend, I decided to give it a try. For $35 including shipping, I got a little bottle of white stuff, several disks of varying grit sandpaper and a buffer wheel. Also I had purchased the electric drill attachment to make the project go faster. The kit came with numerous brochures for other prodcuts but NO intructions for using the kit. So trail and error!! I started with the white stuff and a very fine sandpaper using the drill. After applying it, I drilled away for a few minutes to see what happened. After whiping it clean, I saw bascially no results. Next set was to use a more coarse sandpaper. I did this and slowly, the pits disappeared but the lens became more cloudy. So as not to completely destroy the lens, I shyt down the whole operation. I will next call Scientific Instruments to get further insttuctions. We'll see-to be continued.....