Check out "Prepping Filamet™ for the Kiln". In this video we use much more powder than necessary. And I regret not shipping two pounds of it with each package. We are going to make this stuff available in larger quantities on our website asap.
I strongly encourage you to start by printing the Hello World STL File. Each roll has enough extra product on it to print this object twice. Once you print and fire it, you can send us a picture. From this picture we can get a good idea of what's going on and how to advise you.
You will also want to try polishing some of this right off the printer, with the plastic still in it. We use sewn buffs and Zam polishing compound. Even with the plastic present, the high metal content gives you a look unlike any other filament on the market, it blows ColorFabb right off the map! If you print solid, it will be so heavy and cool in the hand that most people will assume it's pure metal.
We will support you through this process until it works for you.