Again, we agree..up to a point.
The rating of the horse should reflect its relative ability / perceived class.
You are right that the Auckland form is perceived to be stronger, but if the ratings of the horses were done accurately there wouldn't be this anomaly.
As I said, a R65 is an R 65...there shouldn't be a regional difference. If the ratings were done on the horse population as a whole, then the class difference would be reflected in the ratings given.
When ratings are done on a race -by -race basis, then the whole system becomes skewed. The ratings system gets a lot of flak, it isn't hard to follow at all IMO - but its application is flawed here.