I don't know. Some of the changes are a little more realistic. Considering that my 20foot double handed factory equipped Nacra 6.0 rates a 62.5 (down from 62.9) it still sounds like a single handed Dart 20 has a heck of an easy rating with 65.7 - although I have never seen nor sailed against a Dart 20.

The Supercat 20 TR (which is roughly the same weight, with 6 more feet of mast and gobs more sail area, same length, but with a FOUR foot wider beam as my 6.0) also came down 2 points but is still rates a little slower than me. However, this seems a little more realistic.

There were some conversations about taking a look at the "dead boat societies" that have experienced rating creep. I'm not sure what direction the Portsmouth committee took but with the exception of the Dart 20 rating (just because I don't know) the changes seem to be reasonable. Those G-cats have been known to have incredible ratings (I know, I sail against a bunch of them all the time).