here's the link you are talking about. http://mdc4.mdc.mo.gov/Documents/17843.pdf
Also, these crappie beds are all in area's with high boat traffic most of the year. The deep ones may hold fish in winter. a guy shouldn't have to fish these brush piles with all the structure in the lake.
Also, I have put out some structure and stake beds on this lake, they don't seem to produce any better then the other 1,000,000 items already in the lake.
Nice fish though. Had a similar fish to that today.