Well Ken - my poor head is spinning - I went and read your article from last year.
I just know that in my poor little town here, I have to order the milled stuff - not regularly available anyplace. Just like Pine Bark Fines. I order 7 bags of that which I get in March (down to my last 1/2 bag now) from a regular nursery owned by a friend. Love the stuff. And I use it much more that sphagnum peat - 9 times out of 10. I mix both for my blueberries.
For seed starting I use the prepackaged stuff.