Re: Crown Classic Packing
Just keep your tobacco right below the holes regardless of brand. I find 2 coals is enough for any brand, Nakhla, Tangiers, AF etc. About the only experimenting you'll really need to do is with density of pack and hole pattern. The number of holes you poke really seems to make a difference with this bowl as far as airflow. I prefer fewer holes concentrated near the center most times.
For what it's worth, I don't smoke Nakhla out of my classic. It works fine but I prefer using a standard egyptian for Nak.