Brian - Spoke with the lab just now to get some details in order to respond to your question. The net result is that you've stirred up a new TPSL© paper. The paper will discuss the making, use and caveats (using the wrong kind can actually kill your plants) of the four basic kinds of compost. Seems we already have a PowerPoint presentation on this - but I haven't seen it. The lab is sending it to me to reduce to a paper of hopefully no more than two pages. Expect to have it ready in a week or less. I suppose you already know how to make the tea - as there are very many references on this, but maybe what is not clear is the different kinds...