This started out as a comment on Revvy's blog here, but I decided it was enough of a stand alone to make it my first blog attempt. Revvy's entry is worth a read (as are most of his purposeful writings) so click that link too.
I have not experienced a "bad" batch since going AG. That said, I am having a "conversion period" as I get used to it.
To put it in context, I brewed extract with grains and partial mashes in a vacuum for about 10 years until I figured...

Germey