And to follow up on my own thoughts...
Why would anybody in YRALIS opt for a ODR number? Seth and Joe have opened my eyes (and restricted my inventory as a result) to the concept of a slight advantage in rating by adherng to class limitations.
Seems that a changing (and regionally different) PHRF rule will simultaneously force me to cede ground to my PHRF competitors and toss a very good sail in the garbage. Anyone want a lightly used 1/2 oz. chute?