Think your on the button Bob, also means your AVC is doing what it's supposed to do.
If you alter the polarity of your bike Dutch then you need to reverse the ammeter too,
and don't rush into thinking some things wrong if the ammeter shows noting even if you know it the battery is not fully charged , mine did this after reversing the polarity and changing to a DVR2 (yeah should do one thing at a time) no charge on the ammeter until I gave it a really big handful of throttle then it kicked in, has been good ever since