After doing some extensive reading of older posts here on the bitty forum, I found something that seems to work great in my DS Machine. I added the Basement #4 door to get secondary air, but it isn't heated
secondary air. This being the case, the stove has only limited capability to burn off volatiles.
I was reading a Popular Mechanics article that was referenced in an old post. The "Nut and Slack" method they described seems to work really well, and gives a good use for those fines http://books.google.com/books?id=S9YDAA ... rea&f=true
It's a little more work than dumping anthracite down the hopper, but I'll do a little extra work for half the price!!!
This is giving nice, controlled burns and not much smoke.