'option_value' is correct and has no char limit set. I've sent the XML file, but everything looks correct other than the order since adding a second round of options. THe file contains only ~100 options now and still has the same issues. I'm going to set-up the php file regardless, and may just go ahead and fast track that rather than wasting 20 minutes manually moving the order in the XML.
What I'm attempting to do (when you see the XML it'll make sense) is to simply reorder the CTA and Latest Tweet options so they appear before the "Override options for logged-in users" section. Easy enough in the XML file, but it would be fantastic to have it work in the option tree panel for adding more options in the future.