oh yeah...forgot to mention....I have 2 heat guns pointed into the cement mixer...i wash the shot to remove the Glycol, I have several army blankets i bought from Goodwill I pour it on ...let sit a few minutes and dump in the tumbler...turn on the heat guns for a about 15 minutes while it starting to tumble...drys 200 to 250 pounds in less than 15 minutes...add the graphite and run another 45 minutes and your done....shoot me a message if you want to talk shot making .....I have ran about 14,000 pounds to date.