You have point thereThe theoretical analogue combinations that have been suggested are so far advance d compared to whats actually been tried itll take lifetimes to catch up with applied research <___base_url___>/uploads/emoticons/default_smile.png I guess im overly critical because in a former life - pre-EB - i was very into Permaculture and i studied aquaculture for 2 years too, i saw the same thing happen there Those who knew rarely got around to collating and presenting their research and those who didnt know kept rehashing untested concepts and republishing I guess its a universal phenomenon - those who can, do and those who cant, teach Im going to start a new thread to ask what are peoples favourite EB books [ 07. February 2003, 19:57: Message edited by: reville ]