Been listening to a lot of different callers lately. I have come to the conclusion that the get the most realistic sounds out of call you need to huff. If you listen to the really good comp callers they have a different way of putting air pressure over the reeds. They do this by huffing. I know this will probably take a while to learn and I understand that, im willing to put the time in. But I was wondering if anyone new of any good CDs or DVDs that teach the HUFF? If I learn I want to learn the right way the first time I do not want to have to go back and fix anything... Any siggestions?