I just found this same type of thread on TexasFishingForum.com yesterday. It was under the "Crappie" threads, so very applicable! It goes back a few years and has lot's of pics and explanations. Great idea to have one on here, too!

Link for anyone interested... Post your Crappie graph pictures here | Crappie Fishing | Texas Fishing Forum

Interesting to see how fast the technology advanced in the thread over the past couple of years.