Evo and engine appearance change makes good sense. A hell of a lot more workable than trying to prescribe or proscribe these contentious areas. Well done MA. Reed valve restriction is stupidity incarnate.
I disagree on the Evo thing.
While the clarification is welcome and long overdue, I don't think ANYONE wanted this.
The class was always supposed to be about the bikes that were made uncompetitive by linkage rear ends, disc brakes and water cooling. Now those bikes risk being made uncompetitive by FrankenBikes that have no historical precedent, and do not represent ANY era.
And for what gain? To make a small number of bikes that are fitted with 86-89 Honda cartridge forks legal? The juice does not seem to be worth the squeeze.