Maddog:
The url site you mentioned for the Ray Charles Fly, mentioned the pattern imitates freshwater scud and sow bugs, often found in Western tail-water fisheries and spring creeks. Tied by Montana guide Bob Krumm, the name according to Bob, comes from the fact that even a blind person can catch a fish with this pattern (but can he sing and play piano?).

Bob Krumm has written many articles for FAOL over the past 7 years, if you do a Keyword Search on FAOL, and click the "Match All Words" options, you will see the listing for all of Bob Krumm's articles that are in the FAOL Archives.

~Parnelli