There's usually not enough Piston shooters at a GP to make their score representative of the course difficulty.
That's the reason the top score on the day regardless of grade or class is used as a benchmark of the course difficulty.
It's different for Open because they don't shoot the same course.
You could use a similar argument of fairness for any of the classes - is it fair to score a C grade shooter on the top AA score for the day? Or is it fair to have everyone's score based on the top score in the easiest session?
I quite like being able to make a comparison during a season of my score against PCP scores too.
Last edited by Brian.Samson; 25th July 2016 at 10:01 PM.