Chris,
Here is the URL for Don's original advisory (March 25, 2002)

http://www.earthwaves.org/wwwboard/messages/14125.html

Udated on April 4, 2002

http://www.earthwaves.org/wwwboard/messages/14596.html

And April 8, 2002

http://www.earthwaves.org/wwwboard/messages/14734.html

It is quite consistent throughout with more detail added with later updates.
I don't believe Don has forecast anything in the M 6 range for California
Before, and while not all, many of his previous forecasts in the M 5 range
For other areas of the world have been quiet good, and results have been
posted here - IMHO.

• Don's original advisory