AH... I have figured out the problem Todd is having with you..

You don't know how to READ!.... (don't worry, that's correctable... stupid would be unfortunate)

I wrote.. PHRF..... not measurement... PHRF....
you say you understand PHRF... you referenced the evils of PHRF before.

You do know how PHRF works right...? A regional board evaluates race data, Sailor skill, boat prep, team work on the boat, number of sails, size of sails, etc .... and they estimate one rating number for TOD racing usually.

Carry on with killing your N20 class as quickly as you can..