I accidentally posted this on the other thread. Here it is:
You can't average ratings for rounds 1 & 2 at the Hambrick because the 27-hole round rating will be weighted 50% more in the official calcs. If you do the proper weighted average calcs the average ratings for those players will be within a point or exact. You can't average rounds with different number of holes. We account for that in the official ratings.
So tournament rounds with more holes are rated heavier than 18 hole rounds when our official ratings are calculated out with the update? 21 hole rounds are worth like 17% more? 24 hole rounds worth 33% more? If thats true, it'd explain why I keep being a few points off when I try to do my numbers.