hockman, if your research lead to Al's article, then you know why the bark bits are required.
Finding the fines always turns out to be the hardest part. In my case I was able to find "Pine Bark Mini-Nuggets" at the local big box (Lowes). The particle size range is technically too wide, but you could use it successfully without screening. In my case I screened out and used what passed through 1/2" wire cloth.
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Stupidity got us into this mess. Why can't it get us out?
- Will Rogers
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