@Dustcloud I think you might be referring to this post
This was just an example. Not the actual process I used. I just added an edit to the post to explain. Sorry if that threw you off and caused more work.
I usually just delete the ini. When you launch ground control it will create another one. I always wipe the eeprom too. Not sure if that is necessary though. You can make a copy of the .ini if you want to revert back to it later.