Glen, there are a few posts and info about this ont he forum. Click "Search" at the top.
Then, in the "What to search for" box type "ladder".
Next, under "Where to search" check "Titles" and "Message Text".
Finally, under "When to search" pick "Last 180 days".
Click "Search" and bam....there are a few informative posts.
Hope that helps answer your questions. Lots of info there.
Have a super Saturday!