We just finalized the Cadet SOI for our unit. I wrote it and then solicited feedback from the cadet staff. They had some good ideas and suggestions.
Our main reason for writing the SOI was to formally document how things should be done in our Squadron. We would come up with ideas and policies, but often we would not follow them because the staff wasn't informed or didn't understand.
Now everything is written down and if there are any questions we simply reference the document.
You can take a look at our if you like:
http://dl.dropbox.com/u/3459581/OBCAP%20SOI.pdfWe are taking the approach the the SOI is a living document and is meant to to be changed and updated as needs and situation dictate.
A perfect example is our organization chart. As cadets get promoted and take on leadership positions we update the SOI. We are also in the process of adding a Morale and Motivation section where we explain non regulatory aspects of the squadron such as the awarding and wear of our squadron patch, challenge coins, etc.
There has been a period of adjustment as we transition to actually following the SOI, but it has made us much more organized and effective.