Welcome to the forum, TonyL.
Here's the link to Dr Beyfuss's talk on the failure rate. It's a free download, in case you want it.
docs.google.com/viewer?a=v&pid=sites...xOTY1M2RkNjBjMTNhMGM
I think that there may be some video from the primary sponsor, NCNPA, at some point in the future. I just checked their website, and nothing there yet. However, the entire event was recorded [including some vids I think] by a pro soundman located near Etowah, NC.
IN an earlier post within this thread, I said: \" I heard more stories about growing and it's many facets from other attendees, than from presenters.\" Perhaps that was misleading. I meant that personal stories were more prelevant amongst the growers in attendance, while the presenters were showing obstacles' overcome, and some specific \"how-to\" stuff. Robert Eidus of Eagle Feather Organic Farm had a very good talk about converting shabby, rocky soil to growable dirt using compost and eggshell surry to enhance the Ca, as well as creating soil that would actually grow stuff. He had quite a display there with his organically raised herbs from his farm.