Three sources.
First would be the "Forum Archives" here on HOW, lots has been discussed. Then check out the Brian Toss site: http://www.briantoss.com/, click on "Spartalk" on that site. Then there is a very short topic in the Hunter manual. See pages 6 and 7 in the "Related Link". For some reason the "Related Link" did not get added. Here's the URL to cut and paste: http://home.attbi.com/~tdl/tdl/hunter/index.htm
