I am buying the Hank Spicer video on ebay, I hope it helps. I have read alot of manuals on impressioning, and I get the idea, but I think I will have a better idea if I see it.
You can read and watch everything you like. But until you get your hands filled with file shavings it wont help. Really don't waste your money (except on blanks and a file) and just try it.