I don’t understand the post above at all. If the bottom end power and the 12k-14k power band were something people “bitched” about how did fixing these complaints make “the playing filed better equalized”? They were power issues present in virtually all Rotax motors. The field now is NOT equal since you HAVE to spend $500 (or whatever the price winds up being) or get clobbered.
I guess the real question will be what upgrades Rotax will require the user to implement for the motor to be legal.