David, I didn't read your whole post, but I did look at the pdf. On first blush it looks like you could do something like this with a dual axis chart of some sort. Most folks are looking for a packaged workbook to dive into for these sorts of things. So post one and I'm sure folks will dig in and help.
Thanks, Shawn. I actually resolved the issue by re-structuring my data source, which seems to be working out just fine. Many thanks for the post!
HI David: Please mark your question "assumed answered" or otherwise answered so others know not to worry about this thread too much. Helps keep us "clean" as a forum. Thanks!