Hello RussellRay!
Welcome to Mp3tag forums in first place!
I've been analyzing your request/method of formatting the filename and i can show you a "cleaner" method to achieve the same purpose:
%1 - Represents the 1st item of the filename (Tracknumber)
%2 - Represents the 2nd item of the filename (Title)
$caps3- It is the scripting function "case conversion Sentence" (I.E.: artist - ALBUM - 01 tItle -> Artist - album - 01 title)
Learn more about these clicking the following links:
/t/7117/1
https://docs.mp3tag.de/scripting
Take care! 