First off, I would never sand the lens dry as shown in the video. Slow and wet is the way to go. The lens used in the video is not perfectly clear like the Crossfire. When restoring the Crossfire lens, it must be completed really well or every imperfection will show. Been there done that.

And I am told if you use clear out of a can, you are asking for trouble early down the road. You must use a two-part clear if want it to last any time. No clear, just a plastic polish every once in a while after the restore.

Just my opinion. James